The Hobbit series consists of a single book titled ‘The Hobbit’ or ‘There and Back Again.’ Written by J.R.R. Tolkien, it was first published in 1937. The book is a standalone novel and serves as a prelude to Tolkien’s more extensive work, ‘The Lord of the Rings.’ While ‘The Hobbit’ is often associated with ‘The Lord of the Rings,’ it is important to note that it is not a series but a single, self-contained story.