An instructional guide treats conversation as a practical art, arguing it is universal, necessary, and capable of improvement despite requiring natural ease. It analyzes the speaker's conditions (physical—voice and accent; mental—knowledge and quickness; moral—modesty, sympathy, tact), the audience's roles (size, social rank, age, sex, intimacy), and the range of topics (serious or trivial, personal or general). It offers rules for handling discourse in different forms—group deliberation, pair controversy, or single-person display—emphasizes practice and observation over rote examples, and combines theoretical principles with practical observations drawn from social experience.