I had knowledge on this subject for years, so most of the material written in this book was mainly old news to me. Most of the material in this book is an overview of the disorders and a lot of pics of brain scans. (Including before and after shots) There is a lot of talk about medication as well and different categories of antidepressants. Honestly there isn't that much extra material that books like "Don't Panic" doesn't cover (although this book isn't as dry as "Don't Panic"). If you are new to all of this, then it's is a decent read. If you been dealing with this for quite a while now, chances are that your doctor has found the right meds for you and that you've been properly diagnosed. You may want a book that goes a little deeper in the topics of "rational vs irrational thoughts", "self-esteem", or "phobias". I gave this book 3 stars only because I was expecting more with all the 5-star reviews and didn't pick-up anything new, but it's a good book if you are new to all of this and want a primer about the road that's ahead of you.