This book is extremely pop-y and chatty to the point that it irritated me, and it had more evolutionary psychology references than I am usually willing to tolerate...and yet I'm glad I read it. The author is willing to admit when there aren't clear answers one way or another or when things are messy and complicated, or when we just don't know enough yet, and I always appreciate that kind of humility. And look at all those sources at the end! The chatty tone will probably appeal to a wider readership, so I can't really blame Klaas for going that route--and hey, it is extremely readable.

Especially appreciated the final section about how we can design systems that will promote those with integrity and stop the corrupted. I feel like it's rare to see such concrete, actionable suggestions in one of those "here's how we fix it" roundups at the end of a pop psychology book. But all of the ideas were so good! (Now if only we could implement them...)