Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - General Hall of Secrets - Skill EXPLOIT GUIDE - Max Stats

I wouldn't call this isn't an exploit. This video is just going off to play which winds up really doing nothing but reloading a merchant's inventory.

An exploit would be along the lines of buying and using the book. Saving then Exiting and reloading the game and buying the book again, then repeating that over and over.

Having to level in between each use isn't an exploit.