This is just a small Ruby book. It won’t crush you. It’s light as a feather. And there’s a reason this book will stay light: because Ruby is simple to learn.
Free Ruby Books - Part 3
Pulled from the source code using RDoc, this reference work documents the standard library. The Ruby Standard Library Documentation collection, brought to you by the Ruby-doc project. Whether you are browsing online or offline, we hope that your use of Ruby’s standard library will become more productive as a result of this effort.
Pulled straight from the source code using RDoc, this reference work documents all of the core classes and modules (like String, Array, Symbol, etc). These are the API documents for the base classes and modules in the current stable release.
This book is broken down into (roughly) three sections. Getting started will teach you the basics of Ruby, enough to get started on your own projects
Free online book “Learning Ruby” by Daniel Carrera. The first chapter covers the fundamentals of writing a program. It is required knowledge for anyone aspiring to program in Ruby. The second chapter covers the fundamental concepts needed to perform any task.
This free online book demonstrates the use of the most important features of RubyGems in a quick and high-level way. It is designed to be read all the way through to give the reader a feeling for this technology. RubyGems is the premier ruby packaging system.
Data Structures and Algorithms with Object-Oriented Design Patterns in Ruby is an online free Ruby book. The primary goal of this book is to promote object-oriented design using Ruby and to illustrate the use of the emerging object-oriented design patterns. Experienced object-oriented programmers find that certain ways of doing things work best and that these ways occur over and over again.
This is an introductory user’s guide to Ruby programming language. It is available online.