The document discusses comparatives and superlatives in English grammar. It defines comparatives as comparing two or more nouns using "than" and changing the adjective to shorter or adding "more" to longer adjectives. Superlatives are defined as giving a unique characteristic to a noun using "the" and changing the adjective to the shortest form or adding "most" to longer adjectives, and lists some irregular forms. It concludes by providing links to online exercises for practicing comparatives and superlatives.