For courses in Quantum Chemistry. A visual, conceptual and contemporary approach to Physical Chemistry Engel and Reid’s Quantum Chemistry & Spectroscopy provides a contemporary, conceptual, and visual introduction to physical chemistry. The authors emphasize the vibrancy of physical chemistry today and illustrate its relevance to the world around us, using modern applications drawn from biology, environmental science, and material science. The 4th Edition provides visual summaries of important concepts and connections in each chapter, offers students “just-in-time” math help, and expands content to cover science relevant to physical chemistry. Tutorials in Mastering™ Chemistry reinforce students’ understanding of complex theory in Quantum Chemistry and Thermodynamics as they build problem-solving skills throughout the course. Also available with Mastering Chemistry Mastering™ is the teaching and learning platform that empowers you to reach every student. By combining trusted author content with digital tools developed to engage students and emulate the office-hour experience, Mastering personalizes learning and often improves results for each student. Instructors ensure students arrive ready to learn by assigning educationally effective content before class, and encourage critical thinking and retention with in-class resources such as Learning Catalytics.