In reply to rossjmc: Perversely, I actually want to learn how to solo aid now. I can't understand why, considering how horrific it sounds. I guess Andy achieved his aim of explaining why it is so addictive to him.
The book is great for 2 main reasons. 1st is the structure. Every story is there for a purpose and it all builds up to the end point. 2nd is his ability to expalin the emotions of climbing (without getting over dramatic or too wet).
So, what are the best sources to learn aid climbing and solo aid climbing from? The psychovertical website is good but doesn't seem to cover solo techniques for aiding.