Brief outline: new research findings on child development, many counter to commonly-held beliefs/practices.
The chapters include "inverse power of praise (effort counts more than results); why insufficient sleep adversely affects kids' capacity to learn; why white parents don't talk about race; why kids lie; that evaluation methods for giftedness and accompanying programs don't work; why siblings really fight (to get closer)" (from amazon.com)
I think I was most floored by the Tools of the Mind program for preschools/kindergarten, and it's results.
Nothing was surprising, per se, when I related the stories to my husband he said "that makes sense", but it was definitely a great synthesis and summary of current research.
It even talked about how fighting (with your partner/spouse) AND making up in front of the kids is better than fighting behind closed doors (cause they know its happening anyway). And if they get to see the resolution they will gain social skills themselves.