The book "Mirror of literature, entertainment and instructions. Volume 20, No. 584. (Appendix to Volume 20)" is part of an outstanding publication that combines literary works, interesting facts and useful information. This volume offers the reader a variety of interesting materials, among which you can find exciting stories, funny anecdotes, interesting information about culture and science. The authors of this book are various talented writers and journalists who have combined their efforts to make this book exciting and useful for a wide range of readers. Thanks to this publication, everyone will be able to enjoy quality literature and at the same time spread their knowledge in various fields.