Ethnolichenology is the study of the relationship between lichens and people. Lichens have and are being used for many different purposes by human cultures on every continent, with the possible exception of Australia. The most common human use of lichens is for dye, but they are also frequently used for medicine and food. Different human cultures across the world have also found many other more novel uses for lichens.
Read more about Ethnolichenology: Lichens For Dye, Lichens For Medicine, Lichens For Poisons, Lichens For Food, Lichens For Embalming, Other Human Uses of Lichens