Nikolay Atanasov is the author of three of the most popular books about dogs in Bulgaria: "The German Shepherd Dog" (1996), "In the World of the German Shepherd Dog" (1998), "The Dog and His Behavior" (2000). He is a co-author of two editions of the Thracian University: "Handbook of Animal Husbandry - Sheep Breeding" and the textbook "Sheep Breeding with Goat Breeding". He is the author of more than 500 articles on cynology, published in various magazines and newspapers. He has been a regular member of the Union of Scientists in Bulgaria since 1988. In 1992 he founded the Association for German Shepherd Dogs in Bulgaria. During the World Congress of the World Union of German Shepherd Dog Associations (WUSV) in 1994, he applied for membership in the union of the association he created. ONOK was accepted as a member of WUSV with full unanimity, and N. Atanasov became the youngest president who managed to make his organization a member of the World Union of German Shepherd Dog Associations. His research is in the field of origin, breed formation and use of dogs - guardians of farm animals, dog behavior, selection and breeding of the German Shepherd Dog.