No but seriously if you want to work with the Fair Folk please also look at local legends, myths and folklore. The "rules" often stated for working with the Fair Folk: things like "don't say thank you", "offerings should be of milk and honey", "don't tell them your name, for it gives them power over you". Are not universal concepts. Actually, they mostly come from Irish and Scottish lore.
And that's logical because they have the most written about the Fair Folk.
However, those might not be the "rules" of your local Fair Folk. For example, Dutch Fae were given offerings of pancakes. Gnomes apparently love boiled potatoes. And any Fair Folk that love to help humans will disappear forever when seen. Different rules for different Folk.











