I've had lots of books in my chess career. I still have quite a few even though I lost probably half of it through the years. There is only one that I could say is really very memorable. It is my very first chess book... that funny looking, three-inch book by Bobby. I think it is titled "Bobby Fischer Teaches Chess"
Now that I think about it, another memorable one is the Informant where I had my very first game with analysis was published. I forgot what volume # it is, though.
Oh, I have a third one. The "300 Award winning puzzles"... it is memorable because I've been looking for it for a while now so I can put the puzzles at Iskuba Spacebook but I can't find it!!! 



My 3 memorable Chessbooks in my life:
1)Winning Chess Openings by Fred Reinfeld
2) Think like a Grandmaster by Alexander Kotov
3) Chessmaster...at any age by Rolf Wetzell