Welcome to the forum. Your link doesn't work so I am pasting the info about the book. Haven't heard of it. I have been playing for more than 40 years and have many similar books. I keep getting worse. But I can still keep the pace of play.
Seven Great Golf Tips
Author: Gregor Grund
Seven Great Golf Tips is a compilation of effective golf tips that will help you to improve your game of golf immediately. You'll learn things like "How to Take Your Game From the Range to the Course", "The Three Golden Keys to Shoot Lower Scores Today" or "Effective Things to Do With Little Time" and much more