According to leading venture capitalist Ben Horowitz, the crucial question for every organization is: How do you create and sustain the culture you want? To Horowitz, culture is how a company makes decisions. It’s not the values listed on the wall or what’s said in a company-wide meeting. It is who you are and what you do to get you through both good and bad times.

Horowitz reflects on some of his own experiences and highlights four models of leadership and purposeful culture building.