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Featured Leanpub Book

Claude Code: From Basics to Mastery

The Complete Guide to Agentic Software Development in 2026

Steve T. Publications

Software development is changing fast, and Claude Code is at the center of that shift. Mastering Claude Code shows developers how to work effectively with AI agents to write code, automate workflows, and tackle larger projects with confidence. Covering everything from setup and prompt design to real-world engineering practices, this book provides a practical roadmap for anyone who wants to understand how modern software is being built in 2026.

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The Shelf

  • Master Guide to Cyber Security

    TW

    Modern cybersecurity is no longer just about firewalls and antivirus. It is about architecture, governance, secure software delivery, cloud resilience, Zero Trust, AI security, and operational discipline.The Master Guide to Cyber Security brings these domains together into one practical enterprise-focused reference designed for modern security professionals, architects, engineers, and technology leaders.Built around real-world frameworks, secure-by-design principles, and current threat realities, this guide provides a structured roadmap for building secure systems in cloud-native and enterprise environments.

  • Exit-Ready SaaS Infrastructure

    István Pató

    The value of a SaaS business is more than code and revenue. Domains, service accounts, social profiles, and infrastructure ownership matter too. A competitor claiming your brand on X is bad, but a malicious npm scope using your brand to ship harmful code to customers is far worse.

  • Claude Code: Building Production Agents That Actually Scale

    Thomas De Vos

    A best-selling book. The practitioner's guide to Claude Code in production. Thirty-one chapters covering the agent loop, tools, hooks, MCP, the Claude Agent SDK, permissions, multi-agent orchestration, evals, observability, and cost engineering. Includes a full walkthrough of Anthropic's financial services reference agents. Code from real production systems, not toy examples.

  • Be a Learning Machine

    Alberto Souza

    You’ll just need the Five Essential Elements of Learning Through five essential elements, you’ll gain the ability to learn anything deeply—no matter how complex the subject. These five pillars of effective learning will become lifelong tools, guiding you every time you set out to truly master new knowledge and retain it permanently. If you're ready to stop passively consuming information and start truly mastering it, this book is for you.

  • Retrieval-Augmented Generation

    Jeroen Herczeg

    The engineer's guide to RAG systems that survive a deploy.

  • The Senior Go Engineer Interview Guide: AI Platform Engineering

    Luca Sepe

    Prepare for senior Go interviews, or for the jump from mid-level to senior, with a focus on AI platform engineering: LLM gateways, RAG, vector search, Kubernetes, observability, concurrency ownership, and production failure modes. Includes interview questions, senior-level answer rubrics, executable Go examples, and a production-oriented RAG service capstone you can run, test, break, and explain.

  • Build Your Own Coding Agent

    J. Owen

    Skip the black-box frameworks. Build a production-grade AI coding agent from scratch in pure Python - cloud or local, tested with pytest, all in a single file.

  • C++ Algorithmic Mastery: 1000 Challenges from Beginner to Legendary

    Hatem M.

    1000 carefully designed C++ problems across 8 progressive volumes — from your very first line of code to advanced algorithms. Every single solution is compiled and tested on g++, with hints, complexity analysis, and a clear explanation for each. A complete, structured path from beginner to mastery.

  • Learn to Touch Type Chinese

    Neil Keleher

    Input Chinese characters easily, even if you don't know their pronunciation.

  • The Effective Software Engineer

    Stefan Ellersdorfer

    What makes a software engineer truly effective? Beyond writing code, effectiveness comes from ethics, sustainable practices, collaboration, and the courage to adapt. The Effective Software Engineer guides you from clean coding habits to organizational empowerment, bridging the gap between developers and leaders.

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Top Books

  1. The SysML v2 Book
    Practical Insights and Comprehensive Reference
    Tim Weilkiens and Vince Molnár

    Learn SysML v2 with the ultimate guide for all skill levels in MBSE. Authored by insiders, it's your key to unlocking the full potential of system modeling and a passport to mastering your MBSE.

  2. Agentic AI
    Starter Play Book
    Organized by FOSSMyanmar and HTOO AYE LWIN

    ဥပမာအားဖြင့်၊ သင်က AI ကို "မိုးရွာရင် ထီးယူသွားပါ" ဟု ခိုင်းထားလျှင်၊ မိုးသည်းထန်စွာ ရွာနေသော်လည်း အိမ်ခေါင်မိုး ပြိုကျနေပါက ၎င်းသည် ထီးကိုသာ ကိုင်၍ အိမ်ထဲတွင် ငုတ်တုတ်ထိုင်နေပေလိမ့်မည်။ အဘယ်ကြောင့်ဆိုသော် "အိမ်ခေါင်မိုး ပြိုလျှင် ပြေးပါ" ဟူသော စည်းမျဉ်းကို သင်က ထည့်မပေးထား သောကြောင့် ဖြစ်သည်။

  3. CCSP: The Last Mile
    Your guide to the finish line
    Pete Zerger

    The book covers every topic in the latest CCSP exam syllabus, with more than 400 pages 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.

  4. Organisational Dysfunctions
    Open Systems Theory Explains
    Trond Hjorteland

    Most organisations are trying to fix the wrong things. This book names the dysfunctions they keep running into and explains, through Open Systems Theory, why they keep coming back.

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

    All new language and library features of C++23 (for those who know C++20 already). 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

  6. Jetpack Compose Mechanisms
    A dissection of what runs beneath every @Composable
    Jaewoong

    This book takes you straight into the Compose compiler, runtime, and UI layer, all about Compose performance tuning, reading the source line by line and explaining the why behind every design decision, then connecting each internal mechanism back to the code you write every day. The Course: Jetpack Compose Mechanisms | Hardcover | ISBN-13: 9798185354780

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

    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.

  8. Фундамент архітектури
    База, якої вас ніколи не вчили
    Сергій Немчинський

    Чому проєкт-цукерочка через рік перетворюється на непідтримуване пекло? Тому що вас ніколи не вчили базі. Ця книга — єдина система координат, яка нарешті збере ваші розрізнені знання про ООП, GRASP, SOLID та GoF в одну цілісну картину.

  9. The Hundred-Page Language Models Book
    hands-on with PyTorch
    Andriy Burkov

    Master language models through mathematics, illustrations, and code―and build your own from scratch!

Featured Leanpub Bundle

Top Bundles

  1. Android & Compose & Kotlin Interview Mastery Package
    Jaewoong

    The ultimate guide to cracking Android technical interviews, a dissection of what runs beneath every @Composable, and unlocking the 'How' and 'Why' behind Kotlin fundamentals and internal mechanisms.

  2. Build, Debug, Infer, Quantize — A C++ & LLM Bundle
    Hatem M.

    Four books. One complete arc: master C++, debug like a forensic investigator, build an LLM inference engine from scratch, and understand quantization down to the bit level. Everything in one place, for engineers who want to understand — not just use.

  3. Modern GPU Architecture and Programming Complete Bundle
    gareth thomas

    A 7-book GPU collection covering architecture, CUDA, assembly, PTX, SASS, and parallel computing. Learn how to move from high-level programming to low-level execution and optimize performance across modern GPU systems.

  4. Enterprise AI Agents in Production: Build and Secure Them
    Thomas De Vos

    Two practical books for teams building enterprise AI agents in production. Start with Claude Code, tools, MCP, evals, observability, and production agent workflows. Then secure those agents with bounded autonomy, AgentSecOps, RAG governance, identity controls, audit evidence, and regulatory readiness.

  5. 안드로이드 & 코틀린 딥다이브 패키지 (Manifest Android Interview + Practical Kotlin Deep Dive) 한국어판
    Jaewoong
    No Description Available
  6. Residues and The Philosophy of Software Architecture
    Barry O’Reilly

    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...

  7. Haskell Wizard
    Alejandro Serrano Mena

    Become a real Haskell wizard with these two books! On the one hand, get your hands dirty with every major library in the ecosystem. On the other hand, climb the ivory tower and deepen your knowledge of monads.

  8. The Open Geospatial Python Series
    Qiusheng Wu

    Learn geospatial Python from the ground up to advanced GeoAI. Build real-world workflows for GIS, spatial data management, and AI-powered analysis.

  9. Beyond Context Graphs : Agentic Memory , Causual Graphs , Promise Graphs and decision traces
    Volodymyr Pavlyshyn

    How to make agents adopted to enterprice grade tasks

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. Serena Martino, Author of The Unwritten Job Description

Episode: #332Runtime: 58:06Released: 2026-06-22

Serena Martino - Len Epp interviews Serena Martino, executive coach and author of The Unwritten Job Description, about her journey from corporate roles at Google and in the travel industry to founding a coaching practice. She discusses the gap between achievement and alignment, the unwritten rules people live by, and her experience writing and publishing her book chapter by chapter on Leanpub.

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Featured Leanpub Course

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. The Hundred-Page Language Models Course
    Andriy Burkov

    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. Patterns of Application Development Using AI
    Obie Fernandez

    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.

  4. 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.

  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. 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.

  9. The Kubernetes Course
    Nigel Poulton

    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.

Featured Leanpub Track

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. 14 C# Courses Bundle
    EngineerSpock

    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...

  3. 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.

  4. Senior Android Developer Interview Prep Track
    Jaewoong

    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.

  5. 7 Course-Bundle: Shut Up and Code Python + PyCharm + Coding Interview + Machine Learning + One-Liners + Regex + Lambdas
    Finxter, Lukas Rieger, and Shubham Sayon

    "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...

  6. Senior Android, Kotlin, Compose Interview Mastery Track
    Jaewoong

    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.

  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. Design and Architecture Fundamentals in C#
    EngineerSpock

    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.

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Associate Professor of Biostatistics at the Johns Hopkins Bloomberg School of Public Health

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Leanpub authors love Leanpub.

We're authors too, and we built Leanpub to be the platform we would love to use. It turns out, we weren't alone...

  • 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.

    Chris Hartjes
    The Grumpy Programmer

  • Leanpub takes the pain out of publishing. They provide the tools, you provide the books and then magic happens.

    Ryan Bigg
    Author, Multitenancy with Rails

  • I love using Leanpub because I can write my book using simple Markdown notation. Leanpub let's me focus on my content and they handle the rest.

    Taylor Otwell
    Creator Of Laravel

  • Leanpub is a game changer for independent authors, removing the hassles associated with formatting, book production, and electronic sales, freeing up the time to do what we do best: write.

    W. Jason Gilmore
    Author, Easy Laravel 5

  • Leanpub helped me achieve my goal of publishing a book. Its simple, easy to use interface got my book up and making money within weeks, I love Leanpub!

    Samantha Laing
    Growing Agile

  • Leanpub helped me gauge interest in my book, get payments early on when it was only a few chapters, and has got me a bunch of sales just from people browsing around the site.

    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.

    Johanna Rothman
    Author of 8 Leanpub books and counting…

  • Leanpub made it simple for me to run with my book idea and build my reputation in the Ruby community. I went from first draft to first sale in days, not months or years.

    Aaron Sumner
    Author, Everyday Rails Testing with RSpec

  • Four years ago, I joined Leanpub to just give it a try. Today, over 28,000 book sales later, I cannot help but say that I'm the biggest Leanpub fan on this planet!

    Manuel Kiessling
    Author, The Node Beginner Book

  • Leanpub makes publishing your own book super easy. The fact that you can release updates continually helps with the mindset of getting a minimum version out ASAP and then iterating to improve.

    Karen Greaves
    Growing Agile

  • I earn more royalties from my books on Leanpub than I do with well established publishers or through Amazon (which I publish on thanks to Leanpub's mobi conversion).

    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

  • I love that Leanpub makes writing and publishing a beautiful book so simple. I no longer spin my wheels with layouts and formats - Leanpub gets out of the way when it's time to write, and then automates everything when it's time to publish.

    Daniel Root
    Author, Trello Dojo

  • With Leanpub, the first person who purchased my book for $9.99 almost two years ago (and only received a preface, and two short intro chapters) has had access to almost every bit of knowledge I've gained in those two years, and *that's* the value.

    Jeff Geerling
    Author, Ansible for DevOps

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    Reg "Raganwald" Braithwaite
    Author, JavaScript Allongé, the "Six" Edition

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    Paul Redmond
    Author of Writing APIs With Lumen

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    Content Marketer at Zapier