You are holding a real magic book in your hands. Because this is a book that tells an amazing story, and at the same time a calendar. The main character of the book, a boy named Joachim, lives in Norway. And in Norway, as in other Scandinavian countries, there is a tradition of buying calendars on the eve of Christmas, which are called Advent. Every day, starting from December 1, children or their parents open a small window in the calendar, behind which chocolates, figures or pictures are hidden. This continues throughout the entire period of Advent - that is, the anticipation of Christmas, until December 24, when Christmas Eve is celebrated in the evening, and the next day the great holiday of the Nativity of Christ begins. There was a real Christmas night only once, but since then Christmas has been celebrated all over the world. Custom It is customary for those who belong to the Catholic faith to celebrate this holiday on December 25th. In the Orthodox tradition, Christmas is celebrated today on January 7th. But if you count 13 days from December 25 (this is exactly the difference between the old and new styles in the 20th and 11th centuries), you will get January 7th. Over many, many generations, church customs and institutions have changed, but the common beginning in Christianity was a significant event: that night two thousand years ago, when the baby Jesus was born in the city of David, Bethlehem. Every day, opening a new chapter of the book, you will move deeper history, to its origins, to the moment of the birth of Jesus Christ, and true miracles will accompany you along this path! This book by the famous writer Jostein Gorder is written primarily for children and is intended for family reading.