This was really interesting and educational book about functional programming. What makes this book really good is that it is really practical. I wrote about what was most interesting in this book. And how it opened my eyes that functional programming is useful even for object-oriented programmers like me. I deeply recommend this book to every C# developer.
Advent of Code is an online advent calendar where you will get two programming puzzle each day. Really good for learning new programming language and I recommend it to every developer. I wrote about my experience with it.