This prototype represents an internet-based repository for books, allowing the submission of pre-owned books for proper cataloging. The books are organized by genre and provided with detailed profiles. Users have the opportunity to buy from this collection of books, and all purchases are accompanied by receipts. To ensure transparency and accountability, all order, payment, and purchasing activities are meticulously recorded for auditing purposes. Overall, this prototype serves as a foundation for the development of an e-commerce platform dedicated to facilitating the exchange and sale of used books with MongoDB as the database storage using Object Relational Mapping technique.