Haganai
The first "Boku wa Tomodachi ga Sukunai" manga series, written and illustrated by Itachi, has been published in Media Factory's "Monthly Comic Alive" magazine since its May 2010 issue, released on March 27, 2010. Additionally, the series has been collected in 14 "tankōbon" volumes. Seven Seas Entertainment has licensed the first manga series in North America under the title "Haganai: I Don't Have Many Friends".
Leiji Matsumoto
Matsumoto had his big break with "Otoko Oidon", a series that chronicled the life of a rōnin (a young man preparing for university entrance exams), in 1971. Around the same time he started a series of unconnected short stories set during World War II, "Senjo Manga Series", which would eventually become popular under the title "The Cockpit".