Related: http://meta.physics.stackexchange.com/questions/4561/good-list-bad-list
Currently, book-request questions more or less have a blanket ban on this site. I'm seeing if this can be changed, to allow for a relaxed book policy that permits book requests with some constraints.
If there is consensus on this, we can convert this to a meta-faq post, and the policy becomes official1
Please vote on the answers according to whether or not you wish that answer to be the policy for books.
1. Till then, please stick with the old policy. Switching policies before we get sufficient agreement on this will lead to further discord and confusion on the issue.