Joseph Leo III

About The Author

Joseph Leo III is the founder and owner of Def Method, a New York City-based Ruby on Rails consultancy dedicated to building high-quality, thoughtfully crafted software. He has over 20 years of experience as a software developer, engineering leader, and Ruby community organizer.

Books by Joseph Leo III

The Well-Grounded Rubyist, Fourth Edition
By Black A. David and Joseph Leo III
Free PDF and epub formats plus online reader with AI assistant.

For over fifteen years, The Well-Grounded Rubyist has taught beginner and developing Ruby programmers the veteran secrets of Ruby. This new fourth edition of the groundbreaking classic goes beyond syntax and commands in...
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