This series presents reprints of pre-revolutionary books. The book "Belly of St. Petersburg" describes the life of pre-revolutionary St. Petersburg, hidden from view: urban slaughterhouses and a water pumping station, a gluttony row and a hay market; permanent and temporary inhabitants of the capital, from local workers and day laborers to small entrepreneurs and street musicians One of the most scandalous books of its time, "Sex Market and Sex Relations," reveals the history of legal prostitution of the late 19th and early 20th centuries in the Russian Empire. "Students in Moscow. Byt. morals. Types" is the most controversial book of the last century about the life of a Moscow student.