This is a fascinating hardbound "book"--every page is a complete 24-piece puzzle. There are 5 puzzles: hot-air balloons, the Concorde, Tomcat fighters, crop dusters, and Pipers. Short child-friendly write-ups on jumbo jets, control towers, Icarus, gliders, sea planes, and the Wright brothers are included. A great gift for some youngster ages 5-10, or flight fans of any age.