Value, Price and Profit' was a speech given to the First International Working Men's Association in June in 1865 by Karl Marx .
It was written between the end of May and June 27 in 1865, and was published in 1898.
Those wanted to avoid reading the entirety of Capital Volume 1 will find an excellent introduction to Marx's ideas in this short publication.
Karl Marx (1818 - 1883) was a philosopher, economist, sociologist, journalist with the New York Daily Tribune, and revolutionary socialist who championed labour unions.