The term 'Das Kapital Editor' refers to Friedrich Engels, a German philosopher and revolutionary socialist who edited the first edition of Karl Marx's seminal work, Das Kapital. Engels was a close friend and collaborator of Marx, and his editing of the book was instrumental in its success. Engels also wrote several works of his own, including The Condition of the Working Class in England in 1844 and The Origin of the Family, Private Property and the State.