This document provides an overview of the classification of goods in business law. There are three main types of goods: existing goods, future goods, and contingent goods. Existing goods physically exist and belong to the seller at the time of contract, and can be either specific goods that are agreed upon, or unascertained goods that are not specifically identified. Future goods do not yet exist or belong to the seller when the contract is made. Contingent goods are a type of future good that depends on a specific contingency occurring. The document aims to explain these classifications of goods in business law contracts.