“Scala School by Twitter” is a comprehensive guide to learning the Scala programming language, designed and written by Twitter engineers.

The book is divided into three sections: Basics, Intermediate, and Advanced. The Basics section covers the fundamentals of the language, including syntax, data types, control structures, and functions. It also introduces key concepts such as immutability and pattern matching.

The Intermediate section builds on the fundamentals covered in the Basics section, and covers more advanced topics such as collections, type classes, and implicit conversions. It also covers best practices for using Scala in large codebases, including testing, debugging, and error handling.

The Advanced section delves into more specialized topics such as concurrency, parallelism, and distributed systems. It covers the use of actors, futures, and streams for building highly scalable and responsive applications.

Throughout the book, the authors use practical examples and exercises to help readers understand and apply the concepts presented. The book also includes a glossary of key terms and concepts, as well as a comprehensive index.

“Scala School by Twitter” is an ideal resource for anyone interested in learning Scala, whether for personal or professional reasons. The authors’ experience in building large-scale, real-world applications using Scala gives the book a practical and highly relevant perspective.

Moreover, the book’s focus on practical examples and exercises makes it an engaging and effective way to learn the language. The clear and concise explanations, combined with the authors’ expertise, make this book a valuable resource for anyone looking to learn Scala.

Overall, “Scala School by Twitter” is an excellent guide to the Scala programming language that is suitable for beginners and experienced programmers alike. Whether you are looking to build highly scalable distributed systems, or simply interested in learning a new language, this book is a must-read.