The book is a collection of scientific and artistic essays telling about the amazing inventions of the outstanding electrical engineer Nikola Tesla. It describes the amazing discoveries of the inventor in the field of electrical engineering, atmospheric electricity, ionospheric physics and radiophysics. The author analyzes a number of Tesla's ambiguous experiments related to the still unsolved secrets of natural science, the further development of electrophysical science, as well as the possibility of their implementation in the technique of the future.