Chess endgame literature refers to books and magazines about chess endgames. A bibliography of endgame books is below. Many chess writers have contributed to the theory of endgames over the centuries, including Ruy López de Segura, François-André Philidor, Josef Kling and Bernhard Horwitz, Johann Berger, Alexey Troitsky, Yuri Averbakh, and Reuben Fine. Using computers, Ken Thompson, Eugene Nalimov, and others have contributed by constructing endgame tablebases.