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

 * Jungle of the Bat Babies - Sanctuary - On the kitchen table of your old house, where Codsworth resides.
 * Blood on the Harp - Wicked Shipping Fleet Lockup - East end of the main warehouse in the small office, on the desk with the key.
 * Vault 75 - On the bed, inside the Overseer’s office, top floor.
 * Corvega assembly plant - In the Bosom of the Corsair Queen - Assembly level (top floor), in the Raider metal hut accessed via catwalk bridge, near Steamer Trunk.
 * Mass Pike Interchange - On the toilet inside the Gunner camp, by the Power Armor Station.
 * Demon Slaves, Demon Sands - Vault 81 - Given as a reward by Katy the teacher for completing Miscellaneous Quest: Short Stories in the Classroom.
 * What Sorcery This? - Museum of Witchcraft - On the table in the “dungeon” room, upper floor, south wall.
 * Hyde Park - In the raider camp on the roof of the buildings south of the main drag.
 * Back Street Apparel - On a living room table in the ruined upstairs apartment, near the TV and safe.
 * Boston Common - In the bandstand, near the skeleton, close to Park Street Station entrance.
 * Bus and apartment wreckage - On the bed of the comic book fan’s apartment, with the bus crashed into it, close to Andrew Street Station.