BookCAT is a powerful database program designed specifically to maintain an inventory of your book collection. BookCAT is used by book-lovers, schools, churches, clubs, and business libraries. Using BookCAT you can quickly catalog your books by downloading information from the Internet. BookCAT is a program that will maintain the inventory of your book collection. BookCAT will help you track what you have in your library, where it is (including books out on loan) and the total value of your collection.