I assume that b0atg1rl has at some time has acquired a Gränsfors Bruks hatchet or axe, as on nbArianrhod I found a copy of “The Axe Book” which is an introduction to the history and product line of Gränsfors Bruks, as well as a basic overview of the correct treatment and handling of axes. And the recommend ways to work with wood.

A PDF copy of the book can be acquired from here.