KEY MESSAGE: Richard Wolfson's "Essential University Physics" is a concise and progressive calculus-based physics textbook that offers clear writing, great problems, and interesting real-life applications. At nearly half the length and half the price of other physics texts on the market, "Essential University Physics" is a compelling alternative for professors who want to focus on the fundamentals. Modern Physics: Relativity; Particles and Waves; Quantum Physics; Atomic Physics; Molecular and Solid-State Physics; Nuclear Physics; Quarks to Cosmos For all readers interested in calculus-based physic.