I have only read the Richard Jury novels, and they are fantastic, very literary, with a cast of characters that will stay with you book after book and make you laugh out loud. I would suggest starting at the beginning. It is not necessary to read them in order, but it it is helpful, as the character stories continue throughout all of them. I would not start the Jury books with anything after 2001, as these get a bit morose. If you've been following Jury all along, you will still enjoy these, but if you start with them, you might be turned off and will thus miss all of the humor in the early ones.