This document defines and provides examples of different types of adjectives: common adjectives, comparative adjectives, and superlative adjectives. It explains that common adjectives describe a single noun without comparison, comparative adjectives compare two nouns on a scale but not at the extremes, and superlative adjectives elevate a noun to the highest or lowest point on a scale without comparison. It also provides rules for identifying each type based on endings or use of "more" and "most".