The Children's Bookshelf hosts pop-up book fairs at schools where they sell books for £2 each and schools earn 1 free book for every 10 books sold. They bring over 2000 books covering a wide range of topics and authors. Schools advertise the event, provide space for tables, and students come with £2 to choose books. Parents can also purchase books after school. The events generate excitement for literacy while providing affordable books. Schools that host an event receive free books to add to their libraries.