Honestly, I believe this book is a solid 5/5 for the simplicity and the humanity of the Haiku within it.
The feeling of how the people in the past were just like us really hit me like a Semi when I was reading early on and continued to grow. Even with the 'Mature' section of poems I saw not only the older people I personally know but my own feelings towards my own mortality. A few even made me laugh!
I also found myself turning back to read past Haiku that the one I was currently reading maybe gave me a new perspective on. My copy also had a newspaper clipping tucked into it from an author in my area which was very nice and helpful.
I probably should have spent more time meditating on each one but I think that would be for another time. Maybe in a cafe or something with a nice pastry.
The Introduction was also very well-written for how introductions go in these types of books and I was definitely surprised that this book was printed in 1998, you could have told me it was in 2018 and I would have accepted it without question.
The authors also included the original Haiku untranslated in Japanese Kanji which I found to be a nice addition even if I cannot read it myself.
All in all, it was a very brief albeit a delightful read that gave me a little more hope in the common man and humanity and one of the very few rare books I will likely find myself revisiting.