The Japanese children's manga series Doraemon was written and illustrated by Fujiko Fujio. It was serialized in various children's manga magazines published by Shogakukan. Total of eight-hundred and fifty chapters were collected in tankōbon by Shogakukan under Tentoumusi comics (てんとう虫コミックス) imprint. The first volume was published on July 31, 1974 and the last forty-fifth volume on April 26, 1996. The series is about a robotic cat named Doraemon, who travels back in time from the 22nd century to aid a pre-teen boy called Nobita Nobi (野比 のび太 Nobi Nobita).