In the past, there were only two standardized, yearly bestseller lists: Hardcover and Paperback. Both of these lists are now largely obsolete due to the increasing popularity of eBooks.
Today, there are four different bestselling listens: Bilderbuch, Kinderbuch bis 10 Jahre, Kinderbuch ab 10 Jahren and Sachbuch. They are divided into different age groups and each is designed to give a more accurate indication of what interests children.