Scala. Professional programming. 4th ed

"Scala. Professional programming "is the main book on Scala, a popular language for the Java platform, which combines the concepts of object -oriented and functional programming, so it turns into a unique and powerful means of development.
This authoritative work written by the creators of Scala will help you study the language and ideas underlying it.
This fourth edition is completely updated. The material has been added about the changes that appeared in SCALA 2.13, including:
- new hierarchy of types of collections,
- new specific types of collections,
- new methods added to collections,
- new ways to determine your own types of collections,
- new simplified performances.
4th edition