What specific aspects of Japanese comics does "Manga Manga" cover, according to its title?

Given its title "The World of Japanese Comics," the book "Manga Manga" comprehensively covers various facets including the historical evolution of manga, different genres (e.g., shonen, shojo, seinen, josei), the creative process of mangaka (manga artists), the structure of the manga industry, and the cultural impact of manga both within Japan and internationally. It often features examples and illustrations from significant manga works.