Nikolai Ivanovich Sieber (1844–1888) - popularizer of Ricardo and Marx, who became a Marxist even before the advent of Marxism, an expert on primitive economic culture, who anticipated economic anthropology, a critic of marginalism before its triumph. The anthology presents texts from different years about the biography and theoretical heritage of Sieber, rare archival materials and letters are published. The compilers of the anthology express the hope that the collection will form a basis on which it is possible to re-evaluate Sieber’s contribution to political economy, Marxism, economic anthropology, as well as to more quickly and clearly reconstruct the various contexts of that era. The book is addressed to everyone who is interested in intellectual history, the history of economic thought, Marxism and biographies. The publishing layout of the book is saved in PDF A4 format.