Can anyone give me a list of books about UFOs and Aliens?

"Communion" by Whitley Strieber. He has a lot of other good books on the subject, too. It's very first-person, and he tells about his encounters with visitors coming in the night.

I've found a lot of good books at the library. They keep a whole section about aliens, UFOs, ghosts, Bigfoot, etc. together near the beginning (low numbers, I mean) of the non-fiction section.

OK a good one is Aliens in America
by William J. Birnes

There is a guy called J.J Benítez, he has plenty of UFO books, but I'm not sure if his books are in English :S