Best Ruby books?

Question

Any good recommendations for ruby books/tutorials/youtube?

Answer 1

"Programming Ruby 1.9 & 2.0: The Pragmatic Programmers' Guide," by Dave Thomas, Chad Fowler and Andy Hunt, 2013.

Answer 2

thank you Dave and Mariano

Answer 3

Practical Object oriented design in ruby, design patterns in ruby, agile web development in rails, ruby best practices.