This series was developed to help you improve your potential for learning. It incorporates selections with specially blended Hemi-Sync^® frequencies to guide you into focused, whole-brain states of consciousness. The Hemi-Sync sound patterns on these recordings help you achieve and sustain synchronize brain-wave activity in both hemispheres of the brain - an optimal condition for improving human performance. Focused attention, a prerequisite to effective learning is greatly facilitated by the Hemi-Sync® process. This package contains: Concentration and Remembrance - enhance your ability to focus attention for peak performance and creative flow; Retain-Recall-Release - learn cues to retain, recall, or release information from memory; Catnapper - the ultimate pick-me-up; get a refreshing nap in only 30 minutes.