月刊コミックブレイド
"Sketchbook" began as a four-panel manga series written and illustrated by Totan Kobako. It was first serialized in Mag Garden's "Monthly Comic Blade" magazine starting with the April 2002 issue. The manga has made additional appearances in another manga magazine published by Mag Garden named "Comic Blade Masamune". An additional volume, "Sketchbook Shucchōban", was published on January 10, 2006 as a collection of bonus material which initially appeared in "Comic Blade Masamune". When "Comic Blade" ceased publication with the September 2014 issue, "Sketchbook" continued serialization in the online version of "Comic Blade", in addition to a concurrent serialization in Mag Garden's "Monthly Comic Garden" magazine with the October 2014 issue up until the July 2019 issue. The manga is published in Taiwan in Chinese by Tong Li Publishing.