In the form of short stories, notes and answers to questions, information from various sections of chemistry and episodes from the life of chemist scientists are presented. The purpose of the book is to give the reader an idea of chemistry as a necessary link that harmoniously connects us with nature, allowing us to create objects and materials necessary for the civilized world. The book is intended for a wide range of readers - teachers and students, schoolchildren and retirees, engineers and housewives. The curious will find interesting facts here, and practical readers will find useful tips and recommendations.