The present third edition of the book is radically improved compared to the previous one. The content has been enriched with new thematic units concerning the history of sound, outdoor performance spaces, concert halls, and recording studios.

The author attempts to record the significant achievements of the people in acoustics and mentions examples of "milestones" in the developments of acoustic design, such as: visual representation of sound, sound columns, acoustic diffraction, anechoic chamber, Schroeder diffusers, poly-reflective ceiling, solid-state acoustics, acoustic measurements, "epidaure" room acoustic software, floating theater, musical instruments, mixing and ensemble, acoustic indices EDT, IACC, SDI, G, ITDG, BR, architecture and acoustics, "eccentric arena with multiple plaza areas" arrangement, "eccentric arena with diagonal reflectors" arrangement, 2-in-1 versatility, room tuning, orchestra booth, inflatable structures, small teaching rooms in music schools, acoustics of small spaces, etc.

The book, with its wider acceptance, has evolved into a handbook for acoustic design by acoustic space researchers. Its usefulness extends to a broader group of specialists dealing with sound in general, such as engineers, musicians, physicists, etc.