Ex-library book with usual stamps, stickers, etc. Binding is solid and text/interior is clean. 341pages, chapters include: Electrical Fundamentals, Acoustical Fundamentals, Psychoacoustical Aspects, High-Frequency Systems, Low-Frequency Systems, Special Mid-Frequency Systems, Dividing Networks, Component Matching, Microphones in Sound Reinforcement, System Architecture, Concept of Acoustic Gain, System Equalization Practice, System Intelligibilty Criteria..... 21 chapters total.