Praise for the First Edition

“If you need to learn the Ruby language, stop right here! This book is all you need.”

John Griffin, Overstock.com

“David Black’s understanding of Ruby and his ability to transfer that knowledge is phenomenal.”

Philip Hallstrom, PJKH, LLC

“The long-awaited follow-up to David’s Ruby for Rails, this time with the emphasis on Ruby.”

Rick DeNatale, DenHaven Consulting

“A must-read for all who want to use Ruby to learn object orientation or programming in general.”

Robert Klemme, Orga Systems

“David Black again creates a reference that belongs on every Ruby developer’s desk.”

Robert Dempsey, Atlantic Dominion Solutions

“By far the best book if you want to learn Ruby.”

M. Edward (Ed) Borasky, ADP

“The inner workings of Ruby? It’s a secret revealed by David Black in this book.”

Patrick Steger, Zühlke Engineering AG

“A solid, example-based Ruby tutorial with outstanding code examples—great for learning the language.”

Doug Warren, Java Web Services

“I wish I had had this book when I was learning Rails.”

Patrick Dennis, Management Dynamics, Inc.

“A great follow-up to Ruby for Rails.”

Mark Eagle, Intercontinental Exchange, Inc.

“Highly recommended to anyone learning Ruby.”

Greg Donald, VUMC

“An excellent and thorough introduction to the Ruby language.”

Curtis Miller, Freebootr.com