Admittedly not everything in this books is for YOU... it's a collection of different ideas for all retail! In fairness to the author some of the ideas are great... others are ok and some of them just what you could do if living in America, but all in all, if 10/20 ideas worked for you it would certainly increase your profits!
To call the book garbage based on a few ideas in the book being out of date is not a realistic view of the book, but calling it revolutionary would also be a step too far! It's cheap... read it and there is a good chance it'll improve your business!