Atama no Taisou

source: wikidataJapanese puzzle book series

source: wikipedia_enAtama no Taisou (頭の体操, lit. 'Head Gymnastics') is a series of puzzle collections that were released by Kobunsha, and written by Akira Tago. As of 2010, there were 23 regular volumes with an e-book volume released. The first volume was published in 1966 and sold more than 2.5 million copies that year. The series sold over 12 million copies and easily became a bestseller.

source: wikipedia_ja『頭の体操』（あたまのたいそう）は、光文社から発売されたパズルを集めた書籍のシリーズである。著者は多湖輝。一部は電子書籍化もされている。