This document defines and classifies services and how they differ from goods. It discusses how services are intangible performances offered from one party to another without ownership transfer. Services are then classified into five typical offerings ranging from pure tangible goods to pure services. The key differences between services and goods are discussed as the intangibility, inseparability, variability, and perishability of services compared to the tangible nature of goods. The document was created by Eldhose Alias during an internship with Professor Sameer Mathur at IIM Lucknow.