This is probably the wrong forum section for this but just do a simple wiki search (http://en.wikipedia.org/wiki/List_of_Star_Wars_books
) for a list of books and timeline.
I've begun reading a few of them and they are enjoyable "airport" style reads e.g. don't expect anything too deep and they are good enough. Some are better than others e.g. Fatal Alliance although I was disappointed with Deceived which is based on the intro sequence to the game.