Adolescence now lasts longer than ever before. And as world-renowned expert on adolescent psychology Dr. Laurence Steinberg argues, this makes these years the key period in determining individuals' life outcomes, demanding that we change the way we parent, educate, and understand young people. In Age of Opportunity, Steinberg leads readers through a host of new findings - including groundbreaking original research - that reveal what the new timetable of adolescence means for parenting 13-year-olds (who may look more mature than they really are) versus 20-somethings (who may not be floundering even when it looks like they are). He also explains how the plasticity of the adolescent brain, rivaling that of years 0 through 3, suggests new strategies for instilling self-control during the teenage years. Packed with useful knowledge, Age of Opportunity is sweeping book in the tradition of Reviving Ophelia, and an essential guide for parents and educators of teenagers.