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Clean Code: A Handbook of Agile Software Craftsmanship

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Bestselling author Robert C. Martin brings new life and updated code to his beloved Clean Code book

With Clean Code, Second Edition , Robert C. Martin ("Uncle Bob") reinvigorates the classic guide to software craftsmanship with updated insights, broader scope, and enriched content. This new edition--a comprehensive rewrite of the original bestseller--is poised to transform the way developers approach coding, fostering a deeper commitment to the craft of writing clean, flexible, and maintainable code.

The book is divided into four basic coding practices, design principles and heuristics, high-level architecture, and the ethics of craftsmanship. It challenges readers to critically evaluate code quality and reassess their professional values, ultimately guiding them to produce better software. This edition includes expanded coverage of testing disciplines, design and architecture principles, and multiple programming languages.

Design and architecture principles integrated with coding practices Coverage of more languages, including Java, JavaScript, Go, Python, Clojure, C#, and C Case studies for practical exercises in code transformation Techniques for writing good names, functions, objects, and classes Strategies for formatting code for maximum readability Comprehensive error handling and testing practices Productive use of AI tools for coding Soft skills and the ethics of programming SOLID principles of software design Management of dependencies for flexible and reusable code Professional practices and trade-offs in object-oriented design Clean Code, Second Edition , underscores the importance of evolving software craftsmanship to meet contemporary challenges. Offering a deeper exploration of testing, design, and architecture, alongside universal coding principles applicable across various programming languages, this edition is set to be an indispensable resource for developers, engineers, and project managers. It not only aims to enhance technical skills but also to cultivate a professional ethos that values clean, flexible, and sustainable code.

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672 pages, Paperback

Published October 18, 2025

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About the author

Robert C. Martin

86 books1,933 followers
Robert Cecil Martin, commonly called Uncle Bob, is a software engineer, advocate of Agile development methods, and President of Object Mentor Inc. Martin and his team of software consultants use Object-Oriented Design, Patterns, UML, Agile Methodologies, and eXtreme Programming with worldwide clients.

He was Editor in Chief of the C++ Report from 1996 to 1999. He is a featured speaker at international conferences and trade shows.

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