"Understanding Anxiety"
"Understanding Phobias and Obsessions"
How to Cope with Panic Attacks"
available from Mind Publications for £1 per copy.

"Anxiety" - NICE Guidelines 22 (National Institute for Clinical Excellence - www.nice.org.uk)
Management of anxiety (panic disorder, with or without agoraphobia, and generalised anxiety disorder) in adults in primary, secondary and community care.