This document discusses the formation and use of comparative and superlative adjectives in English. It explains that comparatives compare two items and are typically formed with -er or more, while superlatives compare three or more items and are typically formed with -est or most. The document provides rules for regular formation of comparatives and superlatives based on the number of syllables in the adjective. It also discusses using comparatives and superlatives to express greater or lesser degrees, equality with as...as, and emphasizing or weakening superlatives.