Chapter 1, The Design Patterns Out There and Setting Up Your Environment, is a brief introduction to design patterns, why they exist, and their different types. This chapter also provides you with tips on how you can set up your environment in order to easily run the examples in the book.
Chapter 2, Traits and Mixin Compositions, talks about traits and mixin compositions in Scala, multiple inheritance, and the rules of linearization that the Scala programming language uses when extending multiple traits.
Chapter 3, Unification, covers the various unifications that exist in Scala, which makes it as expressive as it is.
Chapter 4, Abstract and Self Types, covers the different types of polymorphism that exist in Scala, ...
