Donald Norman and David Rumelhart were influential theorists in cognitive science and psychology. Rumelhart worked in mathematical psychology and parallel distributed processing at Stanford University. Norman received degrees from MIT and University of Pennsylvania, and held positions at Harvard, UC Berkeley, and KAIST. The document discusses three modes of learning: accretion, structuring, and tuning. Accretion is adding new knowledge, structuring is forming new schemas, and tuning is adjusting knowledge through practice for a specific task.