Turfgrass Science and Management, fourth edition, is designed to teach students about the full scope of information in the turfgrass industry. Content in this up-to-date version has been added to expand upon the sports field industry; discussion of new developments in grass cultivars, soil drainage, fertilization, water, and pesticide use are also included. In addition mowing, plant growth regulators, the golf course industry, and business management have been added to strengthen the text. The images that are provided have been updated and are now in full- color reinforcing the content within the text, especially as it relates to plant identification.