The most renowned philosopher of all time and the founder of Marxism, Karl Marx, sheds the cloak of the philosopher and reveals himself to us in his human dimension through the famous letters of his wife, Jenny von Westphalen-Marx.

In Jenny's letters, alongside her husband, appear Engels and other great men of an era filled with political and social conflicts and upheavals that forever changed the course of history.

The beloved art of letter writing unfolds through the books of the best-selling series "Letters That Changed History." From pen to paper, with recipient and sender, envelope and stamp, famous letter writers send their own message.