This book offers a close-up view of American university life based on the author's intimate, firsthand experience across various institutions. Through "American Campus Observation," the author investigates the characteristics of Western cultural attributes by utilizing sociological methods, including field observation and comparative analysis. The book elucidates the underlying reasons behind specific cases and common phenomena, particularly the distinctions rooted in Western and Eastern cultural backgrounds. With over two decades of life on both Western and Eastern campuses, the author underscores the significant role of "cultural genes" as fundamental factors influencing system design and practice in institutional structures. While discussions on Western culture can be found in various publications, there is a notable absence of articles or books that take a sociological perspective with a cultural gene framework, focusing on campus life and institutional development. This book fills that void.