A short but engaging look at why we dream. In Dreams, researcher Melanie Gillespie Rosen explores the philosophy, biology, and psychology of dreaming.She introduces historical theories from Aristotle to Descartes and evaluates current theories on the nature and purpose of dreams.Dreams may help consolidate memories our brains deem important while clearing out unnecessary ones, they may reflect anxieties, or they may have no purpose at all. In Reflections, a series copublished with Denmark's Aarhus University Press, scholars deliver 60-page reflections on key concepts.These books present unique insights on a wide range of topics that entertain and enlighten readers with exciting discoveries and new perspectives.