I actually came across this book in one of my sociology classes at my local community college. I studied in in the second part of sociology, which was geared toward social problems. The book went great with our studies, because it told why people make certain decisions and what influences our decisions every day, and decisions in the long run of our lives. I learned that some decisions are biological, meaning that we are predestined to carry them out. Some other decisions, however, can be determined sporatically, or on the spur of the moment. Very interesting book. It helps to identify why everyone, including myself, makes decisions that we sometimes question or wonder about. It helps to describe why we act the way we do.