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  1. Business Process Improvement
    Business Process Improvement
    Practical Tools, Proven Methods, Lasting Impact
    Giuliano Marodin

    Why do some processes consistently deliver quality, speed, and value while others create delays, defects, rework, and frustration?Business Process Management, Lean and Six Sigma brings three powerful improvement disciplines together in one practical approach. Learn how to see processes differently, uncover the sources of waste and variation, use data to identify root causes, and design improvements that deliver measurable and sustainable results.

  2. OpenIntro Statistics
    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.

  3. The SysML v2 Book
    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.

  4. 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!

  5. 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.

  6. CISM: The Last Mile
    CISM: The Last Mile
    Your guide to the finish line
    Pete Zerger

    This book covers every topic in the latest CISM exam syllabus, approaching topics from the ISACA perspective. It's 325+ 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 CISM exam without wasting time or money.

  7. The C++ Interview Book
    The C++ Interview Book
    173 questions, from foundations to C++26
    Sandor Dargo

    173 C++ interview questions. Junior to Senior. auto to C++26. Every question has follow-ups, code samples, and cross-references. A 100-day study plan with spaced repetition gets you through them all. A code-reading capstone sharpens your skills under pressure. Not just the answers — the reasoning that survives the follow-up questions.

  8. Introduction to Modern Statistics
    Introduction to Modern Statistics
    OpenIntro, Mine Cetinkaya-Rundel, and Johanna Hardin

    The book is also available in paperback for $25. Paperback royalties go to OpenIntro (US-based nonprofit), and the optional Leanpub PDF contributions go to authors to fund their time on this book.

  9. 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

  10. Under The Hood
    Under The Hood
    Build Every Layer of a Large Language Model from Scratch
    Ramchand Kumaresan

    Bestselling book on building LLMs. A practical, project-driven manual for engineers who want to understand how modern language models are built — and where they fail — by writing every layer themselves. From a scalar autograd engine to RLHF to fused specialists, in 36 hands-on projects with deliberate sabotage experiments. Build it. Break it. Measure it.

  11. Mastering STM32 - Second Edition
    Mastering STM32 - Second Edition
    A step-by-step guide to the most complete ARM Cortex-M platform, using the official STM32Cube development environment
    Carmine Noviello

    With more than 1200 microcontrollers, STM32 is probably the most complete ARM Cortex-M platform on the market. This book aims to be the most complete guide around introducing the reader to this exciting MCU portfolio from ST Microelectronics and its official CubeHAL and STM32CubeIDE development environment.

  12. 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.

  13. 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.

  14. Switching to Linux
    Switching to Linux
    A Practical Guide for Windows and Mac Users
    Jay LaCroix

    Linux is one of the best decisions you can make for your computer — but knowing where to start is the hard part. This guide walks you through everything: choosing a distribution, installing it, and using it confidently every day. It was written by Jay LaCroix of Learn Linux TV, for complete beginners. No prior experience required.

  15. Claude Code: Building Production Agents That Actually Scale
    Claude Code: Building Production Agents That Actually Scale
    Build, Evaluate, Secure, and Operate Production AI Agents with Claude Code, MCP, Hooks, and the Claude Agent SDK
    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.