Fortunately, nowadays there are many books and resources available for those who suffer from panic disorder and other anxiety disorders. Here is a list of some of the ones I’ve found most useful, some that were recommended to me by individuals who have “been there,” and some that professionals I know keep on their bookshelves. Of course, having so many choices can be daunting, so take a few deep breaths, relax, and choose only one or two to start with. They all have something valuable to offer. 
BOOKS:
ADAA In the Spotlight: Guided Exercises to Create a Calm and Confident State of Mind, Body and Spirit While Speaking or Performing
Baer, Lee The Imp of the Mind
Davis, Eshellman & McKay The Relaxation and Stress Reduction Workbook
Feniger, Mani Journey from Anxiety to Freedom: Moving Beyond Panic and Phobias and Learning to Trust Yourself
Foa, Edna & Wilson Stop Obsessing
Handly, Robert Anxiety & Panic Attacks: Their Cause and Cure
Marks, Sir Isaac Living with Fear
Rachman, Stanley & De Silva Panic Disorder: the Facts, Second edition
Wagner, Ph.D., Aureen Pinto Worried No More: Help and Hope for Anxious Children
Weeks, Claire Hope and Help for Your Nerves
Weeks, Claire Peace for Nervous Suffering
WEBSITES:
http://www.adaa.org
http://www.algy.com/anxiety/
http://www.healingwell.com/anxiety/
http://www.lexington-on-line.com/naf.html
OTHERS’ STORIES:
http://www.adaa.org/living-with-anxiety/personal-stories