PangoBooks is an online marketplace where readers buy and sell physical used books directly with other readers. Its catalog features paperbacks and hardcovers, rather than ebooks or audiobooks, with listings that shoppers can explore by title, author, series, or category. Buyers can compare sold-price information by ISBN to help assess listings, while sellers can open their own bookshops and use tools designed to support selling from home.

The site also highlights curated collections, including popular series, current bestsellers, and new releases, helping readers discover books to browse and buy. PangoBooks offers a mobile app and Pango AI, a personal book-shopping assistant intended to help users find books that suit their interests. For research and programmatic access, it provides a public API with search, ISBN pricing, and listing details. The marketplace presents book reuse as part of its appeal, sharing figures for books sold and trees saved. Overall, PangoBooks connects readers through the buying and resale of pre-owned print books.