"Ships at Work" by Mary Elting is a fascinating book that tells about the various types of ships, their functionality and role in the modern world. The author describes in detail how different types of ships work - from large container ships to small fishing vessels. The book contains a lot of interesting facts about sea transportation, illustrations and photos that make reading even more exciting. "Ships at Work" is an excellent guide both for a general audience and for those interested in the sea and shipping.