Breakdown is a pose between keys to help the key frame animator describe the action to in between
Breakdown are the gaps between the keu
Exposure sheet also known as the x sheets or dope sheets
X sheets is used when animator is planning a scene
X-sheets is composed of columns corresponding to the layers
X sheets is used to associate a layer with certain element like character, props, lip sync, etc. and make a record of the frame at which each drawing appears
