Probably the first book that covers the 'Japanese philosophy' as a term and as a corpus of ideas, whether those ideas originated from within or were imported. Of course, it cannot leave out buddhism and confucianism so first chapters are about those 'philosophies'/ 'religions' and major proponents of their respective ideas in Japan. As we move towards 2oth century, ideas are more westernized and the most influential philosopher in Japan, according to this book, is Heiddeger.
But, to not dwell too much on the details of the book, my opinion is that the authors presented a clear and systematized account on the developement of japanese philosophy, major figures and their ideas as well as the overall impact those ideas had on the country and its society.
Maybe I would appreciate this book more if the chapters weren't so big, usually 20-30 pages long, filled with major figures and their ideas and how those ideas were a reaction to something in the past or influenced something in the future, etc.
I can't say I understood every idea, especially those 'modern', prewar and postwar ideas.
But I enjoyed it nonetheless, particularly regarding chinese influence via confucianism.
4/5 star from me for this one.
Would recommend to those interested in philosophy, and those interested in Far East in general.