Market: Acousticians, research scientists, instructors, and graduate and advanced undergraduate students in nonlinear acoustics. This book contains a collection of papers by authors of the Former Soviet Union. The topics covered are media with structural nonlinearities, optical generation of sound, acoustic beat-wave interactions, acoustic shock waves, thermal self-focusing of acoustic waves, solitons, statistical nonlinear acoustics, media with relaxation and oscillatory degrees of freedom, parametric arrays, and fluid cavitation.Contents: Nonlinear acoustoelastic properties of media with complex structure (I.Yu. Belyaeva et al.). Nonlinear wave processes in granular media (A.N. Bogdanov and A.T. Skvortsov). Nonlinear sound interaction in a scattering medium (I.B. Esipov et al.). Nonlinear optoacoustical pulse phenomena in complicated media (S.V. Egerev et al.). Thermal self-focusing of sound beams (O.V. Rudenko and O.A. Sapozhnikov). Nonlinear interaction of noises and regular signals (S.N. Gurbatov). Nonlinear waves in layers and etalon evolution equations (J. Engelbrecht). On the Nonlinear waves in media containing compact oscillators (S.A. Rybak and Yu.I. Skrynnikov). Parametric acoustic arrays in oceanic waveguides: theory and experiment (V.Yu. Zaitsev et al.). The role of parametric arrays in the ocean research (V.A. Voronin et al.). Nonlinear problems of cavitation fracture of liquid under explosive loading (V.K. Kedrinsky).