I will go ahead and agree that what a person has in their personal library does say a whole lot about them.
I don't have many books anymore. I used to have tons of them when I was a kid, and most of them went to my own daughters, so they grace their bookshelves as well.
I do check out most of my books from the library, but there are a few that I did buy.
I have several Bibles
a couple of books on understanding the Bible
a couple of books on Catholicism, including the Complete Idiots Guide to Catholicism
2 books on Princess Diana - one Sandy gave me, and the other I have had since I was 13. That is how old I was when they got married, and I wanted "The Royal Wedding Book" It was an expensive book that came out right after they got married, and I got it for Christmas that year...
I have a book that is really my mother's, called "Limbo" and it is about military wives of POW's during the Vietnam War... its fiction, but very good...
I also have my beloved autobiography by Donny Osmond called "Life Is Just What You Make It".
Of course, like I said, I have read all of the Left Behind series, and every book of Nicholas Sparks and Richard Paul Evans, but I have checked all of them out... I am a cheapskate who doesn't buy many books...