Profile: Jim Steyer

Who: Jim Steyer

Age: 51

Occupation: Founder and chief executive of Common Sense Media, a nonprofit organization focused on the effects of media on children

Education: Bachelor's and law degrees, both from Stanford University

Career highlights: In 1988, founded Children Now, a public policy organization focused on children's issues. In 1996, started JP Kids, an independent children's media company. Author of "The Other Parent: The Inside Story of the Media's Effect on Our Children."

Family: Married and has four children, ages 15, 13, 10 and 4

On his nightstand: "Beautiful Boy: A Father's Journey Through His Son's Addiction," by David Sheff

What he does for fun: Fantasy baseball