This document discusses how marketers classify products. It outlines five levels of a product: the core benefit, basic product, expected product, augmented product, and potential product. Products are also classified based on their durability and tangibility as durable, non-durable, or services. Additionally, products can be classified as either consumer goods or industrial goods. Consumer goods are further broken down into convenience goods, shopping goods, specialty goods, and unsought goods based on customer shopping habits. Industrial goods are classified as capital items, materials and parts, or supplies and business services based on their use in production.