The book "The Steam Engine: Explanation and Illustrations (Seventh Edition) with a description of its invention and gradual improvement, as well as its application to shipping and railways; including Memoirs of Watt" by Lardner Dionysius is an important scientific document that reveals the principles of the steam engine and the history of its development. With the help of detailed explanations and illustrations, the author allows the reader to better understand the principles of operation of this technological miracle. The book also includes interesting facts about the inventor of the steam engine - James Watt, who is rightly considered one of the pioneers of the industrial revolution. This is important reading for those interested in the history of technology and scientific discoveries.