The fifth book in the series "Documents of Soviet History" presents letters, statements, complaints, denunciations and other forms of citizens' appeals to the authorities in the period 1928-1939. The documents selected for the collection reflect fluctuations in public sentiment and shifts in the mass consciousness that took place in the most important era of Soviet history. The fragments of correspondence on citizens' statements included in the book, the most characteristic answers and resolutions make it possible to analyze the typical reaction of the authorities to "signals from the field." The book is designed for a wide range of readers.