I wish I'd had this book when I was entering middle school... or high school, or college, or my 20s and 30s. There are a lot of valuable life lessons crammed into this little volume, and you can call me a slow learner, but I didn't figure most of this stuff out until I was well into adulthood. Even though it's filled with excellent advice, it's also got humor, relatable anecdotes, and interesting exercises, so it doesn't come off as dry or preachy. I bought the Kindle version to read for myself, then a paperback for my kids, and finally a hardcover to donate to their school. This book should be required reading for tweens everywhere (and their teachers and parents!), and it would make an excellent gift, too!