If you can find some quiet time this weekend, either
If afternoon, get a cold beer or other beverage of choice or if morning, a nice cup of coffee or tea, sit down and enjoy
I have finished it but it's a very detailed book and I'm just getting started with maples so I'm going to be referencing back to it alot for sure. You can still buy it directly from him.
Ive only just been able to do a quick skim/look through it so far. Was hoping to be able to look at it a bit more in detail over the winter but my bonsai time has been spent working on my trees and otherwise havent gotten a chance to sit down with it.