Many colleges and universities have developed online book exchange programs to help students save money on textbooks.[2] Some colleges build their own systems and others use systems from third party service providers.
Some book exchanges are informal – a shelf or box is provided where books can be left or picked up. The exchange relies on users leaving and taking books and is generally not supervised.
This is a frequent practice in
Such bookshelves are popular also in Baltic states, funded by local municipalities or by the governments.[4][5] In Riga, the society "Zero Waste Latvia" counted more than 20 bookshelves and boxes in 2024.[6]