Instructors consistently ask for a Human Biology textbook that helps students understand the main themes of biology through the lens of the human body. Mader's Human Biology, 15th Edition accomplishes the goal of improving scientific literacy, while establishing a foundation of knowledge in human biology and physiology. The text integrates a tested, traditional learning system with modern digital and pedagogical approaches designed to stimulate and engage today's student. Dr. Michael Windelspecht represents the new generation of digital authors. Through the integration of an array of multimedia resources, Michael has committed to delivering the tried-and-true content of the Mader series to the new generation of digital learners. A veteran of the online, hybrid, and traditional teaching environments, Michael is well-versed in the challenges facing the modern student and educator. Michael personally guided and oversaw all aspects of Connect and LearnSmart content accompany Human Biology, 15th Edition.