Contribute to xiaozhiliaoo/ScalaBooks development by creating an account on GitHub Hands-on Scala is available now as an E-Book in PDF, EPub, and Mobi formats, or as a Paperback on Amazon. These are already online at, covering setup, basic syntax, standard collections, and notable language features Scala for Data Science. List of Scala books. Since toString overrides the pre-defined toString method,ithastobetaggedwiththe override flag. These are already online at The Principle o f Least Power i s