Book.io is a Web3 marketplace for buying, reading, and selling eBooks and Audiobooks. It allows users to truly own the digital goods they purchase, as they are stored as fully Decentralized Encrypted Assets (DEAs) on the blockchain. The platform enables readers to buy, own, and sell eBooks and Audiobooks on secondary marketplaces, while authors and publishers earn royalties on the secondary sales of their books. The platform also includes a Read-to-Earn model, where users can earn $BOOK tokens for reading books.