First, there was essentially nothing specifically Japanese about the minimalism described in this book. I’m guessing that was just a marketing tool. My sense is that the author read a bunch of books on minimalism, combined all the tips he read, and then strung them together in a somewhat disjointed way. I’ll just give a few examples of the oddness of this book and you can judge for yourself.
1. In the beginning of the book, the author lists “misconceptions about minimalism” and then phrases some negatively “you do not have to...” and some positively “minimalism is about reducing what’s causing you stress.” He does that sort of thing throughout the book, making it hard to follow his line of thinking at times.
2. He writes, “The law of averages says that a person who rushes into decisions will falter at some point in the process.” Well, no. I’m sure he was using the lay expression rather than Bernoulli’s mathematical law, but even that he got wrong. The law of averages used in that way is the (erroneous) belief that events will average out over time and that a particular outcome is inevitable because it is statistically probable.
3. “Psychologists believe that it takes 21 days to establish a habit.” Again, no. If he had asked this psychologist, I could have told him he was wrong. The research on habit formation shows clearly that it varies wildly and is influenced by factors such as how difficult the habit change is. The average is closer to over two months and can be as long as eight months.
4. Maybe this is an editing problem, but “the children lost a father too early due to onset dementia” made no sense.
5. On the section on garage cleanup, he suggests that with items you want to sell, you “post them while you soak in the hot tub.” Water and electronics - great idea!
6. And finally, in the section on minimalism and your job, he suggests saying to coworkers, “‘Hey, how are you and the family? I want to know but give me the short version as I have a million things to do.” Yeah, that won’t be perceived as rude AT ALL. He also recommends pausing to say to yourself as you enter work, “I am going to clock in, and that means no more personal thoughts.” Good luck with that, unless you’re a robot.
In sum, there are many MUCH better books out there on minimalism, Read one of them instead.