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IN the 1980s, the geology faculty at the University of New Mexico, at my suggestion, initiated an introductory-level course on dinosaurs. As the lone vertebrate paleontologist on campus, I, of course, was to teach this course. I had several years of teaching introductory geology—both physical and historical geology—under my belt. But now a problem faced me: no textbook existed for a dinosaur course. Furthermore, in a decade-long stint as a university student—from freshman to doctorate— I had never taken a course on dinosaurs. Few colleagues were teaching dinosaur courses at that time, and all they could offer was a syllabus with a list of suggested readings. Not fully satisfied with their offerings, I set out to design a course and provide reading material from available sources to suit my own ideas about how to teach college freshmen and sophomores about dinosaurs. The book I have written is for the semester-long course I have taught as it has been honed by years of experimentation and student feedback to a lean but comprehensive introduction to the dinosaurs. This book thus fulfills the needs of the many faculty teaching introductory-level dinosaur courses across the United States. My reviewers share this belief, and I hope we are right.