A great primer. Expect no more.
This book is for beginners - a great primer. It details what is what and how to use it for quick in your everyday use.
All said, one example of a simple web page design with the lessons learnt all through the book, would have been great and helped it gain the full 5 stars. It's because of this missing piece, I didn't give it a full 5-star rating.
Note: I am a developer that read this book to aid learning to prototype web-page design in Sketch 3.
You may get your copy from Amazon, should you want it.