The article is a review of the book written by the famous Bulgarian medievalist P. Angelov. The work under review is a collection of articles published in different years and divided into four thematic blocks: Serbian-Bulgarian relations, medieval Bulgarian diplomacy, Bulgarians as seen by their neighbours, and other nations as seen by the medieval Bulgarians. The authors of this review think highly of the book. A significant part of its articles was published in the last five years, but even the earlier articles have still not lost their relevance. The long-term studies of P. Angelov recreate a fairly clear and bright picture of military and diplomatic contacts of Bulgaria and Serbia, Bulgaria and Byzantium, Bulgaria and other countries of the region in a rather broad historical perspective. Some of the debatable assumptions made by the author do not in the least detract from the significance of the work, but, on the contrary, contribute to a constructive scientific dialogue. In general, the new collection of works by P. Angelov, without a doubt, is scientifically relevant, makes a significant contribution to important fields of study, meets the modern international standards of scientific level and will certainly be in demand in the Russian and European scientific community.
POLAND AND UKRAINE: PROBLEMS AND PROSPECTS OF SCIENTIFIC DIALOGUE