In order to provide the necessary legal assistance in resolving various situations that plague almost everyone when purchasing goods, using the results of work and services provided, the author (an experienced lawyer) wrote the proposed practical guide. The manual presents the main legislative criteria for consumer behavior in the market, accompanied by a detailed commentary by the author, describes the actions of the consumer in cases of violation of his rights and legitimate interests. The author pays special attention to ways to protect consumer rights. The appendices to the book provide samples (filled out) of the necessary documents. The publication is intended for a wide range of readers.