Chris Pine first discovered the programming language Ruby in early 2001 and immediately began using it to build tools for his day job: programming computer games. After hours, he volunteered with gifted children teaching them advanced mathematics. With Ruby, he began to teach his students programming as well. Once he saw how easily his students learned advanced programming concepts in this environment, he decided to expand his teaching materials into a book. Chris enjoys board games and juggling, and lives with his darling wife and two darling children in darling Oslo, Norway. He is very happy.

Jeffrey Jacob J. J. Abrams is a director, producer, writer, author, and composer, best known for his work in the genres of action, drama, and science fiction. Abrams wrote and/or produced feature films such as "Regarding Harry", "Forever Young", "Armageddon", and "Cloverfield". He created or cocreated a number of TV drama series, including "Felicity", "Alias", "Lost", and "Fringe". He has also directed "Star Trek "(2009), "Star Trek Into Darkness "(2013), the upcoming "Star Wars: The Force Awakens", and several others.