Books on Ruby

• Sandi Metz | 2012-09-5 Kevin Jalbert | 2015-02-24
  
  Practical Object-Oriented Design in Ruby: An Agile Primer
  • Ruby
  • Object-Oriented Design
• Obie Fernandez, Kevin Faustino | 2014-05-29 Bookcase | 2015-01-13
  
  The Rails 4 Way (3rd Edition)
  • Ruby
  • Rails