This monograph studies the history of handwritten and printed books in Rus in the 11-16th centuries and the centers of this culture. The authors also offer new methods of investigating remaining written sources based on a combination of textological, paleographical, codikological, and diplomatic analysis. 48 color illustrations. Indices. Also available by one of the authors: Drevnerusskie Nadpisi XI-XIV Vekov na Pergamentnykh Kodeksakh (1998); Svod Zapisei Pistsov, Khudozhnikov i Perepletchikov Drevnerusskikh Pergamentnykh Kodeksov XI-XIV vv. (2000).