One-Punch Man: Hero Encyclopedia

One-Punch Man: Hero Perfection is the first encyclopedia that went on sale on October 3, 2015.

Content
The first encyclopedia contains information's about the heroes (their up to date ranks and data level), villains, monsters, battles and the general world of One-Punch Man. It also comes with a making of and interview with ONE and Murata, a quiz, a popularity poll for the techniques and scenes, and a fisherman extra chapter.

Continuity

 * Armored Chief Clerk is revealed to be a business man who quit his job to become a hero.