The Witcher 3 diagram locations

In, diagrams and manuscripts appear at random in chests throughout the world, therefore making it hard to sometimes locate a particular one if it's not sold by a merchant. This is a list detailing locations of chests known to hold a random diagram (or 2). For a visual view, please see below each region's list for a map.

White Orchard


Velen and Novigrad
Note that this is a Hearts of Stone version, therefore those without this expansion may not have the same locations on the far east and north of the map. 