It would appear that it is not possible to list most books on Amazon. I have for some time put aside those books not already on Amazon database ie not already listed, I now have 2,500 of such books. They are pre 1960 and therefore do not have ISBN numbers. Listing of books appears not possible without completion of product identification box (ISBN). I have contacted Amazon & it seems that one can apply for exemption but only separately for each item which is impossible. In practice therefore given that most books published are pre ISBN & not already on Amazon it seems that the majority of books cannot be offered for sale, can anyone advise? Thanks