Ten authors have been on the non-fiction bestseller lists for months. Stefanie Stahl's long-running bestseller "The child in you must find a home" and John Strelecky's "The Café on the Edge of the World" are not included in the list because the evaluation was limited to hardcover editions.
Here you can read when a book is considered a bestseller and how to get on the Spiegel bestseller list. The ten most successful authors of recent years Peter Wohlleben (“The Secret Life of Trees” 158 weeks), 259 weeks Bas Kast, 162 weeks – “The Nutritional Compass” alone was 136 on the best seller list.