Ruby Language

Pragmatic Bookshelf

Programming Ruby 3.3: The Pragmatic Programmers Guide

O'Reilly Media

The Ruby Programming Language: Everything You Need to Know

newhmapps

Learn Ruby language                              

Ruby Programming Language: Comprehensive Ruby Programming Language Guidebook for Beginners and Advanced Learners (English Edition)

Ruby Languages: Discover The Languages That Ruby Is Coded In (English Edition)

Ruby Programming Language: A Concise Manual For Quickly Learning Ruby (English Edition)

Cheat Sheet for Ruby Programming Language: Written by Navis Michael Bearly J (English Edition)

Ruby Language Syntax: Building Ruby-Based Software Programs (English Edition)

Mastering Scripting Languages: Ruby, TCL, and Perl: Fundamental Programs, Problem Solving, and Practical Applications (English Edition)

Quick Start Guide Object Oriented Pocket Reference By Examples Concurrency Teach Yourself Code Book

Ruby Programming Language, Real World Code & Explanations, 2 Books in 1, For Beginners, Ruby Programming Book: Ruby Object Oriented Programming, Ruby Meta ... Learn Ruby by Examples (English Edition)