I have just been given a few hundred Baseball cards to list for a friend and one Michael Jordan mint basketball card with a commemorative book !! I am trying to do research before listing them but there are so many types that I am lost !! And even within the individual types there are different cards !! I have Bowman, Topps, Fleer, Upper Deck, Sportflics 3Ds, Leaf, Donruss, and a bunch of the fancier cards with Gold & Silver embossing, and a couple that are mini`s. These are from a teens collection and are mostly late 80`s & 90`s cards !! How would one begin to organize, catagorize & sell these??? I do not even have a clue which are the most collectable or which players are more collectable !! And I am a member in the PSA forums but these guys speak in a different language,,,,!!! I also have a GM Mint Michael Jordan, Upper Deck, basketball card with a commemorative hardcover book to be listed !! I can`t find this particular book anywhere !! It is called "Welcome Back Michael, A Commemorative Edition" Any help, hints, advice would be appreciated !!!