Quantum Chemistry and Spectroscopy is authored by Thomas Engel and provides students with a contemporary and accurate overview of physical chemistry, emphasizing basic principles that unite its sub-disciplines. The third edition, published on February 21, 2012, by Pearson, continues to emphasize fundamental concepts while presenting cutting-edge research developments that illustrate the vibrant field of physical chemistry. Spanning 528 pages, this book offers a comprehensive understanding of quantum chemistry and spectroscopy.