When you take the Study Action, you make an INT check to study your memory, a book, a clue, or another source of knowledge and call to mind an important piece of information about it. The Areas of Knowledge table suggests which skills are applicable to various areas of knowledge: ### Areas of Knowledge |Skill|Areas| |---|---| |Arcana|Spells, magic items, eldritch symbols, magical traditions, planes of existence, and certain creatures (Aberrations, Constructs, Elementals, Fey, and Monstrosities)| |History|Historic events and people, ancient civilizations, wars, and certain creatures (Giants and Humanoids)| |Investigation|Traps, ciphers, riddles, and gadgetry| |Nature|Terrain, flora, weather, and certain creatures (Beasts, Dragons, Oozes, and Plants)| |Religion|Deities, religious hierarchies and rites, holy symbols, cults, and certain creatures (Celestials, Fiends, and Undead)|