Hi, and welcome to JA!
The book Alcoholics Anonymous is not in the top ten books of all time. Those books are:
There is a slightly different top ten here (but it also does not include AA): http://www.ipl.org/div/farq/bestsellerFARQ.html
There is another top ten list here (again, it doesn't include AA): http://uk.askmen.com/toys/top_10_60/62_top_10_list.html
Only about 22 million copies of AA have been sold, according to this press release: http://utahvalleyaa.org/index8.html.
I hope this helps. Let me know if you need more information.