Friedrich Engels ( 28 November 1820 – 5 August 1895) was a German industrialist, social scientist, author, political theorist, philosopher, and father of Marxist theory, alongside Karl Marx. In 1845 he published The Condition of the Working Class in England, based on personal observations and research. The Condition of the Working Class in England is a detailed description and analysis of the appalling conditions of the working class in Britain during Engels' stay in Manchester and Salford. The work also contains seminal thoughts on the state of socialism and its development. It was considered a classic in its time . Kean Guides offer great books at a reasonable price.