Audio books are recordings of written texts that allow listeners to enjoy stories, information, or educational content without reading a physical book. They can be found in various formats, including digital downloads and CDs, and are available in many genres, from fiction to non-fiction. Listeners can access audio books through various platforms, such as libraries, online retailers, and subscription services. They are particularly popular for multitasking, as people can listen while driving, exercising, or doing household chores, making literature more accessible to a wider audience.