This document defines and categorizes different types of goods. It discusses goods according to their: 1) Material existence as either material/tangible goods or non-material/intangible goods like services 2) Supply characteristics as either free goods, economic goods 3) Transferability as either transferable goods that can be owned by others or non-transferable goods like skills 4) End use as either consumer goods that directly satisfy wants or producer/capital goods that are used to make other goods 5) Ownership as either public goods commonly owned or private goods owned by individuals 6) Durability as either single-use/monoproduction goods or durable/polyperiod goods that can be reused over