The author of the book is an inventor, metallurgical engineer, candidate of chemical sciences. In the book, he shows the inventor's creative laboratory and reveals the conditions that favor or interfere with inventive creativity. Knowing them, you can systematically eliminate obstacles and thereby contribute to improving the activities of inventors. Some of the author's conclusions can only be considered probable. But the reader is interested not only in what has already been firmly established, but also in what is still in its infancy, is the subject of study and heated debate.