If you suffer from panic attacks this book should help you, I definetly recommend it. Panic attacks can be unexpected and hard to come to terms with and it is very easy to become paraniod about having another attack.
Read this book and it explains why they happen, what causes them, what to do if you have an attack and how do deal with it. Knowledege is the key.
If you can understand what is happening to your body then it helps to make you feel more in control and not so scared.