In this book, the author describes how he invented, tested, and applied in practice a theory, device, and technology for cancer treatment, which he named with a single term - Magic Light. This device and the new technology make it possible to completely cure any type of cancer, at any stage, without using such traditional and dangerous methods as Surgery, Chemotherapy, or X-ray irradiation.The Magic Light technology is completely safe for human use because it employs frequency-modulated radio waves to reprogram cancer cells into normal-like ones, which then die by cellular self-destruction (apoptosis). Since the energy of these radio waves is very low, only those cancer cells that are in the process of division at that moment are affected by the reprogramming. And because cancer cells differ from normal cells precisely by their unlimited ability to divide, it is these cells that will be reprogrammed into normal ones. And it doesn't matter where exactly the cancer cells or metastases are located - the radio waves penetrate the entire body and reprogram the cancer cells wherever they may be, whether in a human or a dog.