Free books are literary works that can be accessed without any cost. They are often available through various platforms, including libraries, online websites, and educational institutions. Many authors and publishers offer free books to promote their work or to provide educational resources to the public. Digital formats, such as eBooks and PDFs, have made it easier to distribute free books globally. Websites like Project Gutenberg and Open Library provide thousands of free titles, including classic literature and contemporary works. These resources help promote reading and literacy by making books accessible to everyone, regardless of their financial situation.