You may feel that you have enough material on a-holeness to write a book, but two guys beat you to it; not only that, the NY Post has an article about them, Rise of the a-hole
Two books examine why there are so many of them these days.
The author of the article points out that,
A-holism is a virus: The acts of an a-hole are so outrageous they give us cause to be a-holes right back at them.
Is it worth your time to read books on the subject?
And what about gifting: Do these books present an opportunity to point out that the receiver has been behaving like an a-hole; or is giving them as a gift a-hole behavior?