Within the domain of sport, the application of science is more apparent than ever before. Not only are universities and academic institutions scientifically investigating sport as one element of human performance, but professional teams, sporting organizations, and private training companies are embracing approaches that use scientific principles to help their athletes and teams gain a competitive edge in sporting competition. The potential for applying science to sport training and sport performance is vast. There is a demand for sport scientists who can collect and convert data into valuable information—information that drives decision making and directly influences performance outcomes. To address this growing need, the world-renowned National Strength and Conditioning Association developed the Certified Performance and Sport Scientist (CPSS) certification, along with the must-have reference for anyone in the field. NSCA’s Essentials of Sport Science features contributions from 52 globally recognized experts and thought leaders from the field of sport science. It is the only resource to go beyond sport science’s foundations—physiology, biochemistry, biomechanics, nutrition, and skill acquisition—to address the use of statistics and broader fields of data science, analytics, and technology management. Readers will explore every aspect of the sport scientist’s role: understanding training theory, performing needs analyses, conducting athlete monitoring and assessment, managing data and analytics, and educating and disseminating information. The integration of these technical skills will guide sport scientists in drawing conclusions that can be used to manipulate training methods and shape competition strategies for the betterment of athletes’ health, well-being, and performance. NSCA’s Essentials of Sport Science offers a holistic overview of the technical expertise, skills, and knowledge required to operate effectively as a modern-day sport scientist. Further, it will help prepare candidates for the NSCA’s CPSS certification exam and aid all sport scientists in acquiring and using the best available evidence—at the right time, in the right environment, and for the right individual—to maximize their performance.