The Node.js Handbook
The Node Handbook follows the 80/20 rule: learn in 20% of the time the 80% of a topic.
I find this approach gives a well-rounded overview. This book does not try to cover everything under the sun related to Node. If you think some specific topic should be included, tell me.
You can reach me on Twitter @flaviocopes.
I hope the contents of this book will help you achieve what you want: learn the basics Node.js.
This book is written by Flavio. I publish web development tutorials every day on my website flaviocopes.com.