4 stars (Don't buy this book used!!!!!!!) - The book requires the user to take an on-line preference test to determine your "strengths". The publisher controls the process by printing a code on the inside of the jacket cover. Once the code is used, it cannot be reused. Thus, anyone who buys the book from someone who has already used the code to take the test will be unable to take the test. The book is almost worthless without the ability to take the online test. 5 stars (Useful business tool) - We purchased this great book and another must read book, Optimal Thinking--How To Be Your Best Self, for our customer service teams. This book gave us tremendous insight into individual and team talents and strengths. We then used Optimal Thinking to make the most of the identified strengths and to protect worst event scenarios when weaknesses could have severe consequences (example: Katrina). I think that the days of ignoring such weaknesses with "just be positive, it will all work out fine" are over for most of us. 5 stars (Play To Your Strengths) - The follow up to "First, Break All The Rules" (another excellent book), "Now" focuses on discovering and unlocking your strengths so that ulitmate you are playing with your best foot forward. Included when you buy this book, is a password that allows you to go on-line and take a test compossed by the same people who wrote the book, that will allow you to see what your top strenghts are. Great for any business professional or anyone looking to see what career path they might want to take. ... Free Press :: Business & Economics & Management :: Motivational :: Motivation (Psychology) :: Management :: Employee motivation :: Careers - General :: Career Planning (General :: Now- Discover Your Strengths