Mrs Silzer presents the cultural grid-group theory that has been made popular by Sherwood Ligenfelter and Mary Douglas. Since the author refers to them often and uses their thinking, it would probably be better to just read their books. However, Mrs Silzer does present this theory from a slightly different vantage point in that she has you remember your childhood home, then takes you through the purposes of each room and shows how different cultures view the uses of the rooms differently. For example, the bedroom is for sleep and she shows how in some cultures people have a very set time for going to bed and getting up, each family member has their own bed, and people have expectations as to noise levels during sleep times. But other cultures are able to sleep wherever and at any time, beds are shared among family members, and people can seemingly sleep through anything. She also looks at eating, working, resting, and cleaning. I found the book helpful, but was a little disappointed in that she didn't really talk about teams until the last chapter. Still there was plenty in the book that teams could apply to learning to understand each other and to live and work together.