First and foremost, this was a good book. A clear connection between Aikido and Daitoryu Jujutsu is made, especially with the visual aid of the many photographs of the techniques. Their similarities are evident. However, not much is given to readers on the actual working relationship of Daitoryu and Aikido, and what exactly makes them different. I feel that this book was created for the Aikido practitioner who perhaps is looking for answers that he may be asking about where his or her PHYSICAL techniques originated from. Philosophy is barely touched upon. The author's treacher was a second generation disciple of the headmaster of Daitoryu, (who taught the founder of Aikido). I wonder how much of the book's content is synthesis and how much is authentic. All in all, it is a fascinating book, and does provide insight into the workings of both Daitoryu Jujutsu and Aikido technique.