值得读

• a-little-book-of-ruby-2015.pdf
• Ruby Pocket Reference - Second Edition.pdf
• The Book of Ruby - A Hands-On Guide for the Adventurous.pdf

高级

• Ruby Performance Optimization - Why Ruby is Slow, and How to Fix It.pdf

• Ruby Best Practices.pdf

  不值得读

• Ruby by Example - Concepts and Code.pdf

  其它

• Russ_Olsen-Eloquent_Ruby-EN.pdf

• The Ruby Programming Language.pdf

官方 API Docs

• docs.ruby-lang.org
• https://rubyapi.org/3.4
• https://api.rubyonrails.org/v7.0.8.7/

Ruby Lang

Tutorial: Classes, Inheritance, Modules and Mixins in Ruby on Rails

https://www.webascender.com/blog/tutorial-classes-inheritance-modules-mixins-ruby-rails/