The book “Entertaining Quantum Physics” by the famous Soviet physicist Matvey Bronstein will introduce the reader to the world of tiny particles invisible to the naked eye - atoms and electrons. He will also talk about scientists: Wilhelm Roentgen, Henri Becquerel, Pierre and Marie Curie and many others who discovered and studied the nature of radiation. How did Dmitri Mendeleev predict the properties of elements that had not yet been discovered? What was radium used for? What are alpha particles? Why do geologists find strange halos on some minerals? The reader will learn about all this from the book. For middle school age.