In this anniversary collection, dedicated to the 70th birthday of Prof. Atanas Atanasov, research attention is focused on the empirical and theoretical problems of sociology in connection with the realization of its cognitive function. Prof. Atanas Atanasov, the research focus is on the empirical and theoretical problems of sociology in relation to the realization of its cognitive function and, on this basis, the orientation of social processes and phenomena towards economic and social prosperity. In the context of the subject field of sociology, the authors examine a wide range of problems, structured in the following directions: theory and methodology of sociological knowledge, problems of social life and development, and sociology and economics. In their research, the authors emphasize both the positive and negative aspects of our society, motivated by the idea that this will contribute to its normal functioning and development.