About the book: 2017 / We offer the reader a book that the 110 years since its publication in 1909 have not made less relevant. Our children grow from generation to generation, mature and inevitably face sexual problems, which they carefully try to hide from adults and somehow figure them out on their own. Adults, to the best of their own intelligence, tact and intelligence, try to suggest to their child the correct model of behavior, style of communication with peers and set them on the right path - and so on from year to year, from century to century.…