Airships are self-propelled aircrafts that are lighter than the air itself. Readers of this captivating volume will learn all about how these amazing flying machines work. Handy diagrams and illustrations accompany accessible text, making for an insightful book that readers of many ages and levels can benefit from. Young aircraft enthusiasts, as well as those who are new to the subject, are sure to gain valuable insight from this engaging, high-interest book. It is sure to be a popular addition to any library or classroom.