This document discusses eggs, including their composition, market forms, selection factors, uses, storage, and cooking methods. It notes that hen eggs are most common but other bird eggs are also used. Eggs are available as whole, yolks, whites, or dried. A good egg weighs 55-60g and is 80% moisture. Eggs should be stored at 0-5°C and kept away from strong smells. Cooking methods include boiling, scrambling, and frying.