Definition: A book fair is a trade fair or event where books are sold, reviewed, and discussed. This type of event is often held in physical spaces such as bookstores, libraries, or online marketplaces, but it can also take place virtually through digital platforms like Amazon Kindle Direct Publishing (KDP). The primary purpose of a book fair is to promote the sale of books, gather feedback from readers, and create an environment for discussion about the quality and value of different titles.