Grognak the Barbarian (Fallout 4)

Grognak the Barbarian is a perk magazine in Fallout 4.

Background
Grognak the Barbarian is a series of comic books published by Hubris Comics in the mid-21st century. The comic books relate the adventures of the titular character in a prehistoric world.

Characteristics
The magazines consist of a 10-issue run that each give you an additional rank of the Barbarian perk, which raises the critical damage of melee attacks. . They can be found throughout many locations in The Commonwealth.

Trivia

 * The Lone Wanderer, the Protagonist of Fallout 3, receives a copy of Grognak the Barbarian (Fallout 3) for his/her 10th Birthday Party from Amata Almodovar.