Growing at an ever-increasing pace for over a century, the solid body of concepts and facts that constitute the science of learning demand a comprehensive, systematic introduction. Completely up-to-date and written in a direct, easy-to-read style that is suitable for undergraduates, The Science of Learning is such an introduction. Because its focus is on what is known rather than what is speculated, this book differs from other learning texts by not dwelling on which theories are or are not in vogue. The text's comprehensive coverage makes it an ideal reference for more advanced scholars and specialists in learning and related fields. Major topics covered include the evolution of learning, sensitization, habituation, operant and classical conditioning, imitation, stimulus and response generalization and discrimination, conditional discrimination, memory, motivation, adjunctive behavior, and aversive control. Numerous examples, applications, and illustrations are provided, making The Science of Learning an ideal text for courses in learning. Unique to this text are detailed extensions to animals and humans in natural settings. Adding to its value as a reference as well as a text are appendices highlighting important mathematical developments (e.g., the Rescorla-Wagner theory, matching) and their derivations. Readers of the text will be exceptionally well positioned to follow the literature and comprehend the most recent developments in the field.