This fascinating new volume provides a comprehensive yet concise overview of the chemical aspects of some of the major innovations and changes that occurred during the 20th century, relating chemical structures and properties to real-life applications. Developed for a course taught by the author for several years at UVA, the author covers the important and consequential developments in chemistry and explains their everyday, real-life applications. These include such topics as consumer products, fossil fuel use, polymers, agriculture, food production, nutrition, explosives, and drugs. The section Molecular Biology and Its Applications includes examples of the application of biotechnology and genetic engineering.