Textbook in PDF format

Learn Scala 3
In this new book — Learn Scala 3 The Fast Way! — the author makes the process of learning Scala 3 as simple as possible — it’s like a classroom in a book. The book contains over 80 lessons, and it’s also over 270 pages long. What makes the book unique is:
Each lesson is short: typically only 2-3 pages in length
It comes with Scala 3 source code examples in a Github repository
Almost every lesson also comes with online exercises to help reinforce what you learn
Online Exercises
Studies show that reading alone isn’t enough for human beings to learn, and even highlighting and underlining text doesn’t help as much as you’d expect. The only way to truly remember what you have read is to use it. Through small lessons, source code examples, and online exercises, this book’s goal is to make it as easy as possible to remember and use what you just read.
As an added bonus, if you happen to get away from Scala and then come back to it, you’ll find that the online exercises are a great way to test your memory, and help you recall the most important points of each lesson