Petr Obraztsov, Ph.D. in Chemistry, a famous scientific observer and author of several books, states: today it is simply impossible to imagine our world without chemistry. In his fascinating book, he talks about alchemists and the great Mendeleev, why sweet is sweet and bitter is bitter, what enzymes and microelements are, how poisons and chemical warfare agents were created, how radioactivity was discovered and what graphene is. stories about chemistry have a lot of humor and knowledge of human nature, and therefore they are interesting to everyone - both people far from science and those who have connected their lives with it.