Chernobyl, nuclear power, the exclusion zone... All this is not the scenery of a computer game, but the usual reality in which we live every day. With the consequences of the accident that happened more than 30 years ago, and the nuclear power plants that power our homes. In this book you will not find a detailed analysis of the events that happened on April 26, 1986, or the stories of the liquidators. Instead, you will learn the basics of radiation science, get to know the people who create it, and understand what is happening in Chernobyl and what the future of radiation and nuclear safety in the world might be after the end of the war in Ukraine.