What Buddha is not an economics textbook? Notes on Economics. It does not have and should not have the rigor of economics textbooks, but it is a good supplementary reading for economics textbooks. It allows us to walk into the classroom of Harvard University with the author and listen to various economic theories and viewpoints of many Harvard professors. This book can help us better understand the true story behind boring literature. Harvard Notes on Economics should not be read as an introductory book on economics, it is written for beginners. Also very concerned about the real economic problems. Economics lovers who are interested in American economic policy debate will certainly find a lot of unexpected knowledge from this book that they can't learn outside Harvard classroom.