This checklist for myself to keep track of what TSR & other products I own. Many times was I in the position to
photocopy (ÒXeroxÓ) a module or booklet that the owner didnÕt wish to sell. So gradually my collection
expanded with not only genuine products but also with photocopies.
Since the coming of the officially digitized classic products (PDF) it is even harder to keep track of what product you own in what format.