This document discusses different brain styles - the logical left side and intuitive right side. It then describes four different types of thinkers: the Knower, Conciliator, Conceptor, and Deliberatior. For each type, it provides information on their typical reactions at different points in time, how others may perceive them, and what they are looking for. It also discusses how each type approaches projects and how to best communicate with each type to make them most effective. The four types are analytical thinkers, empathetic reconcilers, creative visionaries, and systematic planners respectively.