You've heard that Functional programming (FP) is good for concurrency. Mastering FP will improve all the code you write.
FP changes practices like TDD; learn how design is more structured and tests are more precise. See why FP-style functions and data structures are actually more reusable than objects. Leave with new tools that eliminate bloat, improve code quality, and speed development.
Python is used all over the place and gaining in popularity. This introduction to Python assumes you know how to program, but don't know Python. You'll learn the basics, write some code and hopefully leave being able to grok Python.
The best way to learn a new language happens to be the best way to program - with a test. Learn test-driven development in Scala with this introductory presentation to some of Scala's most popular tools like SBT, Specs, ScalaTest, Borrachio, and Scala Check.