Hiroyuki Kojima

Hiroyuki Kojima (born 1958) is a Japanese economist, mathematics essayist, and professor. He graduated from the University of Tokyo’s Faculty of Science, completed doctoral coursework in economics there, and holds a PhD in economics. He is a professor in the Faculty of Economics at Teikyo University in Tokyo.

Kojima is the author of The Manga Guide to Calculus, co-written with Shin Togami and Becom Co., Ltd. The book explains differential and integral calculus through manga and practical examples drawn from areas including physics and economics.