Joseph Joyner 
Ruby on Rails For Beginners [EPUB ebook] 
Rails Web Development Programming and Coding Tutorial

Ruby was designed by Matz, who is also called as Yukihiro Matsumoto. This is a scripting language and it can run on many different platforms like Mac OS, Windows and also different versions of UNIX. Ruby is an object oriented scripting language because even strings and integers are also having intrinsic properties and methods.