Milton Kramer's book is a comprehensive assessment of dream research over the past fifty years, including his own remarkable number of studies on dreaming. At the outset, he demonstrates from experimental data that the dream experience is an orderly, non-random event, with regularity and variability that has meaning. He subsequently explores the phenomenon of dreaming, REM sleep, and whether dream reports can be reliably measured. According to his own research, as well as that of other investigators, he concludes that the dream report is both stable and variable across short and long time periods. Kramer proceeds to