Biblio Bertrand is the eBook reading application from the world's oldest bookstore, Livraria Bertrand. This app allows for quick and easy access to eBooks purchased from the Bertrand online bookstore, as well as thousands of excerpts from your favorite authors, organized into virtual bookshelves based on your preferences.

Key features include offline reading, synchronization of notes, bookshelves, and the last page read across devices. With Biblio Bertrand, you can read your eBooks even without internet access, seamlessly continue reading on different devices, create and sync notes, customize your reading experience with font type, size, and background color, organize your eBooks into virtual bookshelves, and explore thousands of free excerpts from your favorite authors. Additionally, the app offers a reading assistant feature for quick word meanings lookup.