The book "Festung Glückstadt" offers a comprehensive examination of the historical siege of the city of Glückstadt, which celebrated its 200th anniversary in 2014. On the occasion of this significant event, a lecture series was organized to shed light on the history and circumstances of the siege by Napoleon's opponents. The six lectures that took place in the winter of 2014 are summarized in this work, providing valuable insights into the military and social aspects of that time. The hardcover volume consists of 228 pages and is written in German. The careful presentation of the content makes the book an important resource for history enthusiasts, offering both academic and general readers a well-founded engagement with the history of the fortress Glückstadt.