It took 10 years of suffering from (more than daily) panic attacks for a family friend to find out what was happening to me and give me this book (which she had used herself). By this time I was close to totally agoraphobic. Boy did reading this book turn my life around. GPs had tried all sorts of meds but there wasn't the understanding of panic attacks back then that there is now, and Roger Baker is the man to thank for how things have changed.
If anyone ever told me that a book was all I needed I would have laughed in their face, but reading this book and understanding every aspect of my body's behaviour and how it was supposed to help me (in an entirely different situation) was enough for me to get back to full health. I'm not saying it's easy, doing CBT on yourself never is, and I would always advise having a good friend or two to back you up, but it works.
If you suffer from panic attacks buy this book. I have now handed out 7 copies of this book (my own copy which I then replace) and now I have learned to keep a couple spare. Nipping panic attacks in the bud is key to not losing 10 years of your life (as I did) and if I had enough money to buy a copy for every sufferer I would, rather than have them go deep into the world of panic attacks.