Acoustics as a branch of physics involves heavy mathematics, and me practice of architectural acoustics involves knowledge of a broad range of subjects. For these reasons, many people believe that good acoustics are almost impossible to obtain and exist only in concert halls. With a solid understanding of the basics, however, rooms with good acoustics are not as hard to design and build as people might think.This work describes acoustics and the factors that must be considered for constructing a room or building with good acoustics. Among the topics covered are intonation, tuning and temperaments of classical music, environmental noise, noise and vibration control, the measurement of sound, sound systems, acoustic models, and acoustical design for various settings and purposes, including acoustics for chamber music, synagogues, churches, and classrooms. Clemens Theatre, Congress Hall, Binns Rehearsal Room, and Philharmonic Hall, to name just a few, are examined as models of small and large buildings with excellent acoustics.