Masamune Shirow is the pen name of Masanori Ota, a Japanese manga artist born on November 23, 1961, in Kobe, Hyōgo Prefecture, Japan. He studied oil painting at Osaka University of Arts, and his interest in manga developed during his college years, leading him to create his first complete work, Black Magic, which was published in the manga dōjinshi Atlas. His professional career began when his work attracted the attention of a publisher, resulting in the release of Appleseed in 1985. This work was a success and won the Seiun Award for Best Manga in 1986.

Shirow is best known as the original creator of the seminal cyberpunk manga Ghost in the Shell, which was serialized from 1989 to 1990. This work, along with Appleseed and Dominion, established him as a key figure in the development of cyberpunk aesthetics and themes in Japan. The original Ghost in the Shell manga has been adapted into numerous highly influential anime productions. These include the 1995 theatrical film directed by Mamoru Oshii, the television series Ghost in the Shell: Stand Alone Complex, the original net animation series Ghost in the Shell: SAC2045, and the film Ghost in the Shell: SAC2045 Sustainable War. Shirow is also credited as the original creator for the anime Appleseed XIII and its related films Appleseed XIII: Tartaros & Ouranos.

Beyond Ghost in the Shell, Shirow's other major manga works include Black Magic, Appleseed, Dominion, and Orion. He has also collaborated with Production I.G to co-create the original concepts for the anime television series Ghost Hound and Real Drive. In addition to his sequential art, he has produced a substantial number of art books and illustration collections, many of which explore fantasy and military themes with a focus on female characters. His later career has seen him shift focus from long-form manga narratives to creating digital illustrations, often of an erotic nature.

Shirow's artistic identity is deeply rooted in exploring philosophical and sociopolitical themes of cyberpunk, including the nature of post-human existence, the relationship between humans and machines, the ethics of biotechnology, and the implications of ubiquitous networks and artificial intelligence. His work is noted for its dense visual detail, extensive technical annotations, and complex narratives that blend high-concept science fiction with action and humor. His manga have been cited as a major influence on Western filmmakers, including the Wachowskis for The Matrix film series. Despite the immense popularity and critical acclaim of his creations, Shirow is known for being a reclusive, publicity-shy individual who rarely gives interviews.