Forgot to mention, there's also an online course put together by - I think an AA pilot? It's free and available at
http://www.fearofflyinghelp.com/ .
I'd give the content a C+ - I read through it a while back and found it comprehensive in covering the issues, but perhaps a bit more condescending in tone than I would have written if I was making something similar. But if your friend has already self identified themselves as a fearful flyer and is actively seeking assistance, it might be valuable for them.