In the first part of the third book "Lectures..." the study of the history of aesthetic thought continues. The third book ends the study of non-Marxist aesthetics. The first part examines the development of bourgeois and democratic aesthetics in Western Europe and Russia XIX century. 26th lecture was written by Dr. philos. sciences M. S. Kagan; 27th lecture, § 1, 2, 3 - A. G. Ast-Vatsaturov, § 4, 5 - T. A. Akindinova; 28th lecture, § 1, 2, 4 - A. G. Astvatsaturov, § 3 - cand. philos. Sciences G.F. Sunyagin; 29th lecture - cand. philos. Sciences V.V. Prozersky; 30th lecture - cand. philos. sciences E.P. Yurovskaya; 31st lecture - doc. philos. sciences P.V. Sobolev; 32nd lecture, § 1 - cand. philos. Sciences A. L. Kazin, § 2, 3, 4, 5, 6 - cand. philos. Sciences T. D. Vereshchagina, 33rd lecture; § 1, 4, 5, 6 - cand. philos. Sciences A. L. Kazin, § 2, 3 - E. A. Belkind.