The famous writer, professor of several universities, author of best-selling novels Umberto Eco (1932-2016) in this book appeals to his favorite audience teachers and students. Everything that a scientist needs to know, especially when he takes up a diploma, thesis or one of the first scientific articles, is set out with intelligence and tact, with artistic expressiveness and magnificent technicality. Any supervisor, giving this book to a graduate student or graduate student, will get rid of the hassle. Any young scientist, having worked through this book, will get rid of doubts . Anyone who reads this book will experience genuine joy. Despite the fact that some provisions relating to the technical side of writing a diploma are outdated (no one uses typewriters, books are more often scanned, not copied), everything that concerns the intellectual component is universal and will always be relevant. In PDF A4 format, the publishing layout of the book is saved.