I got this book free at a leadership summer camp I attended in high school. I didn't want anything to do with the camp, I hated that everyone assumed the campers were all self-centered and depressed, and I couldn't wait to go home. A few months after the camp ended, I came across this book and its companion again; this time, without the patronizing "you teens all need help" nagging me, I read and completed both this book and The 7 Habits of Highly Effective Teens Personal Workbook. 
 At 15, I found both of them to be very helpful. As a rising sophomore, time management was an important skill I didn't really have (juggling all honors classes plus very competitive tennis left me feeling drained), the sections on relaxation and taking a break helped me understand exactly why I felt so drained, and the how-to-listen section taught me how to connect better with my peers. The quotes and comics were relevant and well-placed. The explanations didn't feel patronizing. 
 I flipped through this book again as a senior in high school; some of the solutions are simplistic and overly-optimistic and aren't applicable to all problems. Despite this, the book was a great resource for me as a high school underclassman.