To get going as a neophyte skinner you’ll need to find a skinning knife and some animal corpses.
Whether you’re making the corpses yourself, or other players around you are the ones making the mess, a corpse will need to be fully looted before it can be skinned.
The early experience as a skinner will find them taking the hides, meats, and blood of small mammals, reptiles, and amphibians. As a skinner becomes more skilled they’ll be tackling larger animal corpses. Eventually skinners will be harvesting magical and mythical beasts like basilisks, wyverns, and dragons.
The primary use for skinning yields is in crafting recipes for Outfitters, Provisioners, and Alchemists.