Gay Life in Paris is a book written by Anonymous, which provides an overview of the life and culture of Paris in the 19th century. The author details the various aspects of Parisian life, such as the nightlife, dining, fashion, and social norms of the time. The book provides a window into the world of Paris in the late 1800s, and is likely to be of interest to anyone interested in social history, cultural studies, or the history of Paris.