This is a fantastic book, good for anyone either starting in sales or for someone who wishes to consolidate their knowledge by having a quick refresher type book that covers all of the main components of the sales process. I read it when I first started in sales and in my first year I outsold pretty much every other sales person in the 100 strong UK sales team. I'm now a sales manager and recenty bought a copy of this book for each of my sales team.
If you read this, and The Fast Forward MBA in Selling by Joy J. D. Baldridge (my other favourite sales book) and apply the lessons thoroughly, you'll become a top sales person. If after all of the advice in these 2 books you don't start seeing results, think about whether you are in the right company or even the right career.