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Featured & Recommended Books

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Architecting High Frequency Trading Systems

Featured Leanpub Book

Architecting High Frequency Trading Systems

Modern C++ design patterns for Lock-Free Pipelines, Kernel Bypass, and Nanosecond Execution.

Every nanosecond is a decision. Most trading systems lose thousands of them before the strategy even runs.Architecting HFT Systems in Modern C++ is the build manual for the systems that don’t. Starting from bare metal, you’ll construct a complete high-frequency trading pipeline, from packet arrival to order on the wire, with zero heap allocation and zero system calls on the hot path.You’ll learn how to:Tune Linux for deterministic, low-jitter execution with isolated cores, IRQ affinity, and tickless kernelsReplace malloc with arena allocators, pre-faulted pools, and clocks that never touch the kernelWire every component through lock-free SPSC queues using only the memory ordering you actually needBypass the kernel with DPDK, ef_vi, and io_uring, reading packets exactly where DMA placed themDecode ITCH, SBE, and FAST feeds at wire speed with branchless, compile-time-dispatched parsersBuild a cache-resident order book that updates in nanoseconds, not microsecondsRun strategies through a zero-virtual-call harness and enforce risk limits in a handful of instructionsProve it all with deterministic pcap replay, a simulated exchange, and automated latency regression detectionEvery chapter ends with a Latency and Determinism Ledger, a running p50/p99/p99.9 record that shows exactly where each nanosecond went and how it was won back.No toy examples. No hand-waving. Just the architecture, the code, and the measurements behind real tick-to-trade performance.Speed without determinism is luck. This book teaches you both.Short version (for ads or the subtitle line):Build a complete HFT pipeline in modern C++, from kernel bypass to order on the wire, with zero allocation, zero syscalls, and every nanosecond measured.

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$49.00Suggested price · Minimum price $29.00
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World Models for AI Agents

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World Models for AI Agents

World Models for AI Agents is a technical guide to building agents that can do more than react to prompts. Instead of treating memory as a loose collection of context fragments, this book presents world models as structured, evolving representations of state, time, entities, actions, and consequences.The book connects modern agent design with memory architectures, knowledge graphs, temporal reasoning, and planning. It explains why retrieval alone is not enough for long-horizon tasks, how graph-based memory can serve as an explicit world model, and why persistent agents need more than short-term context to remain coherent over time.Topics include episodic and semantic memory, temporal knowledge graphs, belief states, action-conditioned reasoning, planning under partial observability, and the path from memory continuity to agent identity.Written for AI engineers, researchers, and system architects, this book offers a practical conceptual framework for designing agents with persistent memory, better reasoning, and more reliable long-term behavior.
$29.00Suggested price · Minimum price $19.00
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Featured & Recommended Courses

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Introduction to Reproducibility in Cancer Informatics

Featured Leanpub Course

Introduction to Reproducibility in Cancer Informatics

This course is meant to equip learners with reproducibility skills they can apply to their existing analyses scripts and projects. This course opts for an “ease into it” approach. We attempt to give learners doable, incremental steps to increase the reproducibility of their analyses.

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$19.00Suggested price
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Top Books

  1. Super Study Guide: Transformers & Large Language Models

    A clear, illustrated guide to large language models, covering key concepts and practical applications. Ideal for projects, interviews, or personal learning.

  2. Logic for Programmers

    Not just for mathematicians and detectives! Learn the basics of logic and its many applications, including advanced testing, constraint solving, function composition, and code proofs. Over 50 exercises and 20 sample programs are included. No prior math background required!

  3. Extreme Reliability
    Extreme Reliability
    Programming like your life depends on it
    Jules May

    We just accept that software is inherently imperfect, that all software must contain bugs, and we design our development processes around that. But what if it were possible to write correct software? What if we could consistently develop clean, maintainable software that works perfectly, all the time? And what if it were cheaper, faster and easier to write correct code than to write the buggy variety? What then? Flawless software, delivered faster.

  4. CCDE Design Labs
    CCDE Design Labs
    Mohammad Khalil

    CCDE Design Labs – Volume I challenges you with realistic, scenario-driven network design problems inspired by the complexity and decision-making expected at the CCDE level.Work through evolving business requirements, technical constraints, architecture trade-offs, exhibits, and unexpected changes then compare your decisions against detailed answers and design rationale.Built for experienced network engineers and architects who want to sharpen their design judgment, challenge their assumptions, and prepare for advanced real-world network design.

  5. OpenIntro Statistics
    OpenIntro Statistics
    Includes 1st, 2nd, 3rd, and 4th Editions
    David Diez, Mine Cetinkaya-Rundel, Christopher Barr, and OpenIntro

    A complete foundation for Statistics, also serving as a foundation for Data Science. Leanpub revenue supports OpenIntro (US-based nonprofit) so we can provide free desk copies to teachers interested in using OpenIntro Statistics in the classroom and expand the project to support free textbooks in other subjects. More resources: openintro.org.

  6. No More Helloworlds. Build a Real C++ App
    No More Helloworlds. Build a Real C++ App
    Master Real C++ Development: Architecture, Git, Testing & CMake in One Practical Workflow
    Nikolai Kutiavin

    You know C++ syntax. Now learn how to structure, build, test, and maintain a real C++ application.

  7. C++23 - The Complete Guide
    C++23 - The Complete Guide
    Nicolai M. Josuttis

    All new language and library features of C++23 (for those who know C++20) The book presents all new language and library features of C++23. Learn how this impacts day-to-day programming, to benefit in practice, to combine new features, and to avoid all new traps. Buy early, pay less, free updates Current Content: www.cppstd23.com Other leanpub books by this author:C++20C++17C++ Move Semantics

  8. CISSP: The Last Mile
    CISSP: The Last Mile
    Your guide to the finish line
    Pete Zerger

    The book covers every topic in the latest CISSP exam syllabus, organized in a format that makes it easy to drill down on specific exam domains and concepts at-a-glance, making it an essential exam resource for anyone who aims to prepare for the exam without wasting time or money.

  9. Claude Code: From Basics to Mastery
    Claude Code: From Basics to Mastery
    The Complete Guide to Agentic Software Development in 2026
    Steve Publications

    Software development is changing fast, and Claude Code is at the center of that shift. Learn how to work effectively with AI agents to write code, automate workflows, and build larger projects with confidence. From setup and prompt design to real-world engineering practices, this book provides a practical guide to modern software development in 2026.

Interviews with Leanpub authors and special guests

The Leanpub Podcast

Hosted by Leanpub co-founder Len Epp

In The Leanpub Podcast, Leanpub co-founder Len Epp interviews authors and special guests about their lives & careers, their areas of expertise and the issues of the moment, and their experiences as writers. Every episode is deeply researched and covers areas that are equally of human interest, general interest, and professional interest.
Featured Leanpub Podcast Interview

The Leanpub Podcast 🎙 Feat. Fiodar Sazanavets, Author of Production-Grade Python, LangChain & LangGraph

Episode: #340Runtime: 55:19Released: 2026-10-08

Fiodar Sazanavets - Fiodar Sazanavets, a former Microsoft engineer and four-time Microsoft MVP, joins the Leanpub Podcast to discuss his book Production-Grade Python, LangChain & LangGraph. He talks about his journey from Belarus to the UK, teaching himself to code, and transitioning from .NET to Python-based AI engineering. The conversation covers why production knowledge matters in the age of AI and how he approaches writing technical books.

Top Courses

  1. Stratospheric - From Zero to Production with Spring Boot and AWS
    Hands-on online course to learn all you need to know to get a Spring Boot application into production with AWS.
    Philip Riecks, Björn Wilmsmann, and Tom Hombergs

    Hands-on online course to learn all you need to know to get a Spring Boot application into production with AWS. Visit our landing page for a tour of the contents. Make sure to get familiar with all available bundle options before enrolling.

  2. Master language models through mathematics, illustrations, and code―and build your own from scratch! This course includes nearly three hours of exclusive video interviews with the author, covering questions related to each of the six lessons included in the course.

  3. Generative AI in a Nutshell
    How to Survive and Thrive in the Age of AI
    Henrik Kniberg

    This is a fast-paced, practical, and visual guide to the strange new world of Generative AI. It is like an extended version of Henrik's viral video with the same name.

  4. Unlock the power of AI in your applications with this groundbreaking course on AI-driven application architecture. Discover practical patterns and principles for building intelligent, adaptive, and user-centric software systems that harness the potential of large language models. This course includes exclusive video interviews with the author.

  5. Microservices Masterclass
    David Farley and CourseAI

    Microservices are a great approach for building software at scale. But although the ideas at the root of microservices may sound simple, this is not a simple approach. There are several big traps along the way, and it's important to avoid them...

  6. Manifest Android Interview Course
    The ultimate guide to cracking Android & Compose technical interviews.
    Jaewoong

    To ace your next Android developer job interview, focus on truly understanding the concepts, not just memorizing answers, and practicing how to apply them. With over 250 quiz questions, 370 practical and follow-up questions with full answers, and 60+ pro tips, this course helps you sharpen skills, understand the why, and prepare for real-world technical challenges. ISBN: 979-8285926436

  7. Practical Kotlin Deep Dive Course
    Unlocking the 'How' and 'Why' behind Kotlin fundamentals and internal mechanisms.
    Jaewoong

    Takes you from "how to use Kotlin" into "how Kotlin really works," revealing internal implementations, demystifying bytecode and compiler behavior, and uncovering the internals that shape the language. With hands-on Code Playgrounds for immediate practice and 158 interactive assessments to test and reinforce your understanding, this course doesn't just show you why everything is the way it is, it challenges you to prove you've mastered it.  ISBN: 979-8243872744 

  8. This course is based on the 2025 edition of the best-selling Kubernetes book, that has been fully updated for the latest versions of Kubernetes and the latest industry trends. You won't find a better and more up-to-date book-based course on Kubernetes. Hand-crafted over the past 8 years by best-selling author Nigel Poulton.

  9. Machine Learning Made Simple
    8 Pillar Machine Learning Algorithms in Python
    Finxter and Lukas Rieger

    This course gives you an intuitive understanding of the eight most important machine learning algorithms. It helps you get started using them in your own projects NOW -- in a single line of Python code. After finishing this course, you'll be able to select, understand, and implement the top 8 machine learning algorithms in your own projects.

Featured & Recommended Bundles

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Residues and The Philosophy of Software Architecture

Featured Leanpub Bundle

Residues and The Philosophy of Software Architecture

This bundle includes the books “Residues: Time, Change and Uncertainty in Software Architecture” and “The Architect’s Paradox: Uncertainty and the Philosophy of Software Architecture” by Barry M O’Reilly. The books complement each other, with Residues giving a practical description of how to apply residuality theory and The Architect’s Paradox...

Includes 2 books: Residues: Time, Change, and Uncertainty in Software Architecture., The Architect’s Paradox

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$40.00Suggested price
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Top Bundles

  1. CCIE Service Provider Ultimate Study Bundle
    Piotr Jablonski, Łukasz Bromirski, and Nicholas Russo

    Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification...

  2. This bundle includes the books “Residues: Time, Change and Uncertainty in Software Architecture” and “The Architect’s Paradox: Uncertainty and the Philosophy of Software Architecture” by Barry M O’Reilly. The books complement each other, with Residues giving a practical description of how to apply residuality theory and The Architect’s Paradox...

  3. No Description Available
  4. Windows 10 System Programming books (part 1 and part 2)

  5. C++20, C++17, and MoveSemantics - The Complete Guides

  6. Docker and Kubernetes are taking the world by storm! These books will get you up-to-speed fast! Docker Deep Dive is over 400 pages long, and covers all objectives on the Docker Certified Associate exam.The Kubernetes Book includes everything you need to get up and running with Kubernetes!

  7. Build a connected study path from Claude agent foundations to professional solution architecture. The bundle combines scenario-based preparation, practice exams, architecture exercises, and detailed reasoning about why plausible answers fail. Independent guides; not affiliated with or endorsed by Anthropic

  8. Big Kotlin pack
    Marcin Moskała
    No Description Available
  9. Pattern-oriented software diagnostics and anomaly detection, uniquely systematic and multidisciplinary, is the new approach in a long time. Described as the unified field theory of software diagnostics and anomaly detection, It encompasses and expands the whole field, offers a wider range of software diagnostic and anomaly detection...

Watch Leanpub authors launch their books

Leanpub Book Launches

Hosted by Leanpub co-founder Len Epp

In a Leanpub Launch video, Leanpub co-founder Len Epp sits down with an author to launch their new book: what it's about, who it's for, and the story behind writing it. Every Leanpub author can apply to record one, for free.

Featured Leanpub Book Launch

Complete Guide to Self-Hosted WordPress on AWS

Launched:
Complete Guide to Self-Hosted WordPress on AWS is a hands-on, command-by-command manual for standing up a production-grade WordPress site on Amazon EC2 and running it the way a hosting provider would: hardened, monitored, backed up, and maintained. It is not a book about writing posts or picking a theme. It is about the infrastructure underneath — the AWS account, the network, the LAMP stack, the security layers, and the maintenance habits that separate a real production system from a tutorial project that breaks the first time something goes wrong. The book is self-contained. You will not be sent off to piece together five outdated blog posts and a stale AWS doc page to get a working answer. Every chapter builds on the last, using the same instance, the same domain, and the same working configuration. Inside, you will: - Decide whether self-hosting is right for you, and understand the tradeoffs against managed WordPress hosting - Set up an isolated AWS sandbox: a VPC, security groups, and an EC2 instance with proper SSH access - Install and configure Apache, MySQL, PHP, and WordPress using WP-CLI, and tune PHP-FPM for real traffic - Configure Apache virtual hosts, DNS, and Cloudflare, then wire up SSL end to end - Harden the site against attacks with Apache and NGINX-style rules, a Cloudflare WAF, and login security including two-factor authentication - Set up Redis object caching for performance, and Amazon SES for transactional email - Read and rotate logs, enable WP_DEBUG properly, and set up monitoring and alerts so you find out about problems before your visitors do - Version-control your site, take real backups, and practice restoring from them before you actually need to - Learn how to migrate an existing WordPress site onto this setup - Know what to check first if you suspect you've been hacked, and how to recover - Handle the unglamorous but essential parts: routine maintenance, plugin hygiene, and scaling up as traffic grows The appendices give you a MySQL cheat sheet, a WP-CLI cheat sheet, NGINX equivalents for every Apache command in the book, complete configuration files, and a one-page runbook you can tape next to your monitor. Who this is for: developers, freelancers, and consultants who set up WordPress for clients or their own business and want to stop paying for managed hosting or explaining downtime they can't diagnose. It's also a strong fit for a computer science student who wants a real, defensible production system on their resume instead of another tutorial project. Basic command-line comfort is assumed; everything else — AWS, Linux administration, and WordPress internals — is taught from the ground up. By the end, you will be able to provision, secure, and operate a commercial-grade WordPress installation entirely on your own — the same work managed hosting providers charge you for every month. About the author: Siddharth Jain is a software developer with more than 15 years of experience in the tech industry across Microsoft, Uber, Johnson & Johnson, and Cisco. He is also the author of Programming Hyperledger Fabric: Creating Enterprise Blockchain Applications and runs his own WooCommerce based web store at https://www.sidstick.com/. More information about him can be found on his Linkedin profile: https://www.linkedin.com/in/awargi/

Featured & Recommended Tracks

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7 Course-Bundle: Shut Up and Code Python + PyCharm + Coding Interview + Machine Learning + One-Liners + Regex + Lambdas

Featured Leanpub Track

7 Course-Bundle: Shut Up and Code Python + PyCharm + Coding Interview + Machine Learning + One-Liners + Regex + Lambdas

"Shut up and code." Laughter in the audience. The hacker had just plugged in his notebook and started sharing his screen to present his super-smart Python script. "Shut up and code" The letters written in a white literal coding font on black background was the hackers' home screen background mantra. At the time, I was a first-year computer...

Includes 7 courses: Machine Learning Made Simple, The Smartest Way to Learn Python Regex, Learn Python the Practical Way [Coding Interview Exercises], Python Exercises Collection +3 more

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$77.77Suggested price
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Top Tracks

  1. AI Masterclass
    Henrik Kniberg, Obie Fernandez, and Andriy Burkov

    About the Track: AI Masterclass Artificial Intelligence is reshaping the way we live, work, and build technology. The AI Masterclass Track brings together three powerful courses from world-class experts to give you a comprehensive, practical, and hands-on education in the age of AI. Whether you want to understand the big picture, apply AI...

  2. Kotlin for developers
    Marcin Moskała

    This is the complete track to learn about essential Kotlin features and get ready for working in Kotlin in daily basis. It starts from essentials, and on the way reaches advanced topics like efficient collection processing or DSL creation.

  3. Taking this bundle, you'll get a comprehensive set of courses that cover almost the whole surface of the .NET framework.The big topics that are covered:WPFMVVMSpecFlow and SeleniumLINQMultithreading and Parallel ProgrammingC# in Depth: Puzzles and GotchasAlgorithms and Data Structures in C#VS and R#and engineering practices:Unit Testing with...

  4. Senior Android developer interviews rarely test memorized answers. They test whether you truly understand how things work under the hood. This track takes you beyond “how to use” into “how Android, Compose, and Kotlin actually work,” exploring internal implementations, bytecode and compiler behavior, and the system-level concepts that shape modern Android development.

  5. Senior Android interviews test real understanding, not memorized answers. This track goes beyond “how to use Kotlin” into how Kotlin and Android actually work under the hood, including compiler behavior and internal concepts. With hands-on playgrounds and 400+ quiz and interview-style questions, it helps you practice reasoning through problems and confidently tackle senior-level technical interviews.

  6. "Shut up and code." Laughter in the audience. The hacker had just plugged in his notebook and started sharing his screen to present his super-smart Python script. "Shut up and code" The letters written in a white literal coding font on black background was the hackers' home screen background mantra. At the time, I was a first-year computer...

  7. Real World Python
    Lukas Rieger and Finxter

    Learn Python the Practical Way - In this course you learn all the basics of the Python programming language. It contains exercises, explanatory videos, an example solution and a quiz. This will enable you to apply your skills to a wide range of real world problems.A collection of more Python exercises - Exercises with solutions to continue...

  8. A Simple Path to Python Success
    Finxter, Lukas Rieger, and Shubham Sayon

    Python is the fastest-growing major programming language on the planet. This practical course set will teach you Python in a hands-on, highly practical way that guarantees your success. All you need to go from zero to completing your own Python projects in a relaxed, student-centric, and fun environment. Create yourself a new skill that'll bring...

  9. Taking this course bundle, you'll learn:SOLID principles (SRP, OCP, ISP, LSP, DIP) in-depthMeta principles: DRY, KISS, YAGNI, SoC, CQS, Law of Demeter, PoLADependency Injection in Depth: IoC or DI containers, best practices, and anti-patternsFunctional Programming in C#: purity and side effects, functional C# features, immutability,...

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  • As an academic, I like Leanpub because it lets me write and get my ideas out there quickly. Leanpub is simply the best place for publishing my books.

    Roger D. Peng
    Associate Professor of Biostatistics at the Johns Hopkins Bloomberg School of Public Health
  • Leanpub's book-creation tools allowed me to focus on creating the types of books I wanted to write instead of worrying how to create my own book publishing toolchain. I have never regretted using Leanpub to publish my ebooks.

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    The Grumpy Programmer
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    Creator Of Laravel
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    Author, Easy Laravel 5
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    Growing Agile
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    Phil Sturgeon
    Author, Build APIs You Won't Hate
  • Leanpub helps me see my books as I write them. Even better, I can find readers early, to read my books and offer suggestions. I can pivot, if I see the need.

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    Author of 18 Leanpub books and counting…
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    Aaron Sumner
    Author, Everyday Rails Testing with RSpec
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    Manuel Kiessling
    Author, The Node Beginner Book
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    Growing Agile
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    Paul Bradshaw
    Paul runs the MA in Online Journalism at Birmingham City University
  • Leanpub allows me focus on content, takes care everything else and offers an amazing author royalty. It’s a fantastic platform for writing and publishing books.

    Simon Brown
    Author, Software Architecture for Developers
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    Daniel Root
    Author, Trello Dojo
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    Jeff Geerling
    Author, Ansible for DevOps
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    Reg "Raganwald" Braithwaite
    Author, JavaScript Allongé, the "Six" Edition
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    Author of Writing APIs With Lumen
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    Content Marketer at Zapier

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