During reading the documentation on underscore.js I found out the link to the book Functional javascript. For a long time I had postponed the learning of this theme and now I can fill the gap in my knowledge of functional programming and javascript techniques.
This book has positive and negative reviews, but in my opinion this book is more of a practical approach. Can I recommend to to anyone? In my opinion, yes. Of course, you cannot master the functional programming only by this book. It gives you a lot of information and directions in where to find more information.
What I like about this book is a good bibliography and a reference to useful javascript libraries.