Three-dimensional, accordion-fold pocket guides, each tucked inside an attractive slipcase, reveal favorite sites and fascinating subjects. Take to the skies with an exciting guide featuring twelve innovations—from hot-air balloons, gliders, and the Wright brothers’ early planes to the aircraft of war and modern passenger planes to small and luxurious private planes—that have allowed humans to fly.
Three-dimensional, accordion-fold pocket guides, each tucked inside an attractive slipcase, reveal favorite sites and fascinating subjects. Take to the skies with an exciting guide featuring twelve innovations—from hot-air balloons, gliders, and the Wright brothers’ early planes to the aircraft of war and modern passenger planes to small and luxurious private planes—that have allowed humans to fly.
