Ancient Greeks, modern seers, Freud, Jung, neurologists, poets, artists, shamans-humanity has never ceased trying to decipher one of the strangest unexplained phenomena we all experience: dreaming. Now, in her new book, Roz Chast illustrates her own dream world, a place that is sometimes creepy but always hilarious, accompanied by an illustrated tour through "Dream-Theory Land" guided by insights from poets, philosophers, and psychoanalysts alike. Illuminating, surprising, funny, and often profound, I Must Be Dreaming explores Roz Chast's newest subject of fascination-and promises to make it yours, too.