Best-selling author

This is a list of best-selling fiction authors to date, in any language. While finding precise sales numbers for any given author is near-impossible, the list is based on approximate numbers provided or repeated by reliable sources. "Best-selling" refers to the estimated number of copies sold of all fiction books written or co-written by an author. To keep the list manageable, only authors with estimated sales of at least 100 million are included. Authors of comic books are not included unless they have been published in book format (for example: comic albums or Tankōbon).

Authors such as Miguel de Cervantes, Alexandre Dumas, Charles Dickens, Jane Austen, Arthur Conan Doyle, Victor Hugo, Jules Verne, Rick Riordan, Jack Higgins and Leon Uris have not been included in the table because no exact figures could be found—although there are indications that they too have more than 100 million copies of their work in print.

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