Twentieth-Century Music: An Introduction (4th ed., 2001, Prentice Hall) by Eric Salzman offers a concise yet comprehensive survey of modern music from Debussy to postmodernism. With clear explanations of atonality, serialism, minimalism, and electronic music, Salzman contextualizes key movements and composers within broader cultural and historical shifts. Ideal for students, educators, and music enthusiasts seeking an accessible entry into 20th-century musical innovation. Available at Best Book Centre.