The ability to take risks is necessary for those who want to innovate and successfully cope with the difficulties of choice in a wide variety of life situations. However, when making important decisions, we often have to deal with statistical data, the meaning of which we do not fully understand and therefore rely on the opinions of experts - politicians, financial advisors, doctors. But what if they also don’t fully assess the risks involved? How can we be confident that we are asking doctors the right questions about the treatment we are offering? Are there effective rules that can help us choose the right partner? This book tells us how to recognize when the information we are given is incomplete and how to deal with such situations. Its author, Gerd Gigerenzer, takes a comprehensive look at the examples given, identifying the reasons for the misunderstanding of the risks we face. He shows how we can use simple rules that will help us avoid unreasonable fears or hopes and make more intelligent and informed decisions.