What is a list book series?

A book series is a sequence of books that are related in some way, usually either through characters, settings, or overarching story arcs. A list book series is a collection of books that follow a specific list or set of criteria. For example, a book series based on the alphabet might feature a book for each letter, or a book series based on countries might feature a book for each country in alphabetical order. List book series can be written for all ages and genres, from picture books to young adult novels. They are often popular with readers who enjoy the predictability of knowing what the next book will be about and enjoy collecting the entire series.