A method is provided for conducting a plurality of merchandising transactions with customers of a bookstore relating to a plurality of books. A unique book number is assigned to a selected printed book in the plurality of books, and the book number is affixed to the selected book. The book number is recorded in a database, and linked to indicia related to the book. Then each transaction related to the selected book is recorded in the database together with customer information. Book and label products are provided comprising a printed book and a label affixed to the printed book having a book number thereon that is unique to that printed book. Methods are provided for conducting buying and/or selling transactions with a customer relative to a selected printed book. In addition, a method is provided for conducting buying and selling transactions with a customer relative to a plurality of books involving a network of bookstores including providing in-store credit applicable to transactions in any network bookstore. Also, a method is provided for a bookstore to maintain an accurate on-line database of textbooks required by faculty members of a school.