Practical Object-Oriented Design in Ruby: An Agile Primer (Addison-Wesley Professional Ruby)

Agile Web Development with Rails 7

Crystal Language High-Performance Development: Ruby-Style Syntax with Compiled Speed for APIs CLIs and Backend Services

Rails Scales!: Practical Techniques for Performance and Growth

Ruby on Rails Tutorial: Learn Web Development with Rails (Addison-Wesley Professional Ruby Series)

Distributed Programming with Ruby (Addison-Wesley Professional Ruby Series)

Ruby Under a Microscope: An Illustrated Guide to Ruby Internals

Modern Web Development with Ruby on Rails: A Hands-On Beginners Guide to Developing Robust Web Applications with Ruby on Rails (Mastering Ruby on Rails: The Complete Developer’s Series)

Web Development with Rails 8 and PostgreSQL: A Practical Beginner's Course (Mastering PostgreSQL: From Basics to Beyond)

Essential Ruby