Golem Manual:
A Golem Manual is an arcane tome featuring instructions on how to create a golem of the type specified. In order to even read the tome, the user must be a spellcaster with at least two 5th level spell slots or suffer 6d6 Psychic damage immediately.
Each golem type requires expensive and exotic materials to create, some of which simply cannot be purchased. Once all the materials have been assembled, and the ritual performed, the manual bursts into flames. Sprinkling the ashes of the manual on the golem finalizes the product and brings life to the creation. A golem obeys your orders to the best of its abilities regardless of what they are and can speak and understand your languages.