This book is a semi-autobiographical work that explores the harsh realities of poverty in two of Europe's most renowned cities. The protagonist, a struggling writer, first experiences the squalor, hardship, and vagabond lifestyle of Paris, where he works menial jobs and often goes hungry. The narrative then shifts to London, where the protagonist lives as a tramp, navigating the oppressive rules of homeless shelters and the stigma of poverty. The book is a deeply empathetic and insightful exploration of the often invisible world of the impoverished.

This book is a sociological exploration of the bleak living conditions among the working class in Lancashire and Yorkshire, England, in the 1930s. The author, who lived among the people, vividly describes the hardships of the poor and criticizes the systems that make them so. The latter part of the book presents a discussion on class and possible socialist solutions to the issues presented in the first part. It's a powerful critique of British society at the time and a call for better conditions for the working class.