Who are kikimors, Mavkas, brownies and ovishniks? How did our ancestors tell fortunes? What kind of fairy-tale birds are Alkonost, Sirin and Gamayun? What symbolism was associated in Rus' with a crossroads, with a rooster, with a cat, with a wolf? Why does St. Kasyan have a holiday once every four years, and St. Nicholas the saint twice a year? Where does the weeping grass grow and Buyan Island is located? What is Alatyr, Vyriy, rag? How was Maslenitsa celebrated? You can find answers to all these and many other questions in this popular and informative encyclopedia, which combines about one and a half thousand words and concepts. The book is a laureate of the “Russian Dictionaries” competition in 2000. The encyclopedia contains about 1000 articles dedicated to the characters of the pagan and Orthodox mythology of the Eastern, Western and Southern Slavs. The basic terms used in mythology studies are explained. The role of everyday objects and animals in rituals and beliefs is shown. The encyclopedia is supplemented by the Slavic month book. The book is written in a lively, fascinating language, the articles present interesting legends and stories. Intended for students, schoolchildren, a wide range of specialists - historians, literary scholars, linguists, as well as for everyone interested in the history and culture of the Slavic peoples.