Tales of a Junktown Jerky Vendor

Tales of a Junktown Jerky Vendor is a skill book in Fallout 3, Fallout: New Vegas, and a perk magazine in Fallout 4.

Background
A series of post-War periodicals about trading and barter written by a jerky vendor from Junktown. 

Fallout 3/New Vegas
Found in the Capital Wasteland and Mojave Wasteland.

Fallout 4
Found throughout the Commonwealth. Each edition focuses on a different aspect of post-apocalyptic business acumen.