This book has some decent ideas and ties them together well. I appreciated that the author didn’t pretend results were inevitable. He pointed out more than a few times that different systems work for different people and not all people find fulfillment in the same things. Which is a realistic approach for a business book. His concepts revolve around doing the least necessary which I can get behind if it doesn’t compromise quality to a level that is unacceptable. 

I like the idea of Peak Times and Dead Head space. Also found value in the concept of having minimum limits for measurement instead of just maximum limits. 

 l disliked the following concepts -

“I don't believe in priorities.” - Good luck with this. 

“Meetings can be reduced to 15 minutes." - Not for collaborative decision making they can’t be. 

Keeping  your personal stash of books down to 15 books. - Why do you yourself? Is this some act of self-torture? Is your wife anti bookshelves?  
  
 Marie Kondo  - Lol 
 
The Five Whys - Four? Six? Five is so arbitrary. 

Nothing new, but sound advice.