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.

Locations

 * One can be found in Sanctuary Hills, in the Sole Survivor's former house.
 * Another in the Wicked Shipping Fleet Lockup office. (Back office, on the table with a terminal)
 * Another in the Corvega assembly plant office with Jared