Ken Wilber and Corey deVos offer a guided tour through the many kinds of growing up, helping us understand development not as a single ladder we ascend over time, but as an entire psychograph of different intelligences, capacities, and gifts. Whereas most developmental models focus on a single line unfolding through multiple stages, integral accounts for all of these different lines — cognitive, morals, needs, values, and a dozen others, each growing at their own pace.