This book provides both students and intelligence professionals with basic theory and a number of practical tools to enhance their careers as analysts. Its subject matter goes under many names: competitive intelligence, competitor intelligence, business intelligence, and marketing intelligence. The aim has been to show the logic behind analysis so that the student and the professional may learn the techniques of building or adapting his or her own analysis to fit any practical problem, rather than presenting well-known analyses as if they were static truths. The book is not about state and military intelligence, nor about the history of intelligence. Having said this, it will be apparent to the reader that the scientific methods and tools presented are shared by all the intelligence functions.