Deep Brain Stimulation (DBS) is a remarkable therapy for an expanding range of neurological and psychiatric disorders. In many cases it is better than best medical therapy and succeeds even when brain transplants fail. Yet despite the remarkable benefits, many physicians and healthcare professionals seem hesitant to embrace this therapy. Post-operative programming of the DBS systems seems unfamiliar, even mysterious, and is viewed as difficult and time consuming. However, DBS programming is rational and can be efficient and effective if one understands the basing underlying concepts of electronics, electrophysiology, and the relevant regional anatomy. Even these principles can be relatively easy to grasp. The book helps the reader to obtain an intuitive understanding of the basic principles of electronics, electrophysiology and the relevant regional anatomy through the use of readily understood metaphors and numerous illustrations. In addition a number of tools are provided including algorithms to ensure efficient and thorough programming. Forms are provided to help with documentation. In addition, DBS related research provides a remarkable tool to understand how the brain works and what happens in diseases such as Parkinson's disease. Already long cherished theories of the pathophysiology of Parkinson's disease must be abandoned. Indeed, these DBS derived insights suggest fundamental revisions of theories of brain function are in order. The book provides an introduction to where some of the new theories may lead particularly with the growing awareness of the importance of oscillations in the brain's activities. The brain has more in common with electrical devices, such as computers, than it does to a stew of chemicals. DBS operates at the electrical level in the brain, which is fundamental to how the brain creates, manipulates and conveys information and may indeed be fundamental to the misinformation the results in the dysfunction related to disorders of the brain.