High-Flying Helicopters Paperback – Picture Book, 1 November 2016

High-flying Helicopters (Amazing Machines)

Henry the Helicopter: Fun and Educational Story for Future Engineers (Vroomers)

I Spy And Count The Helicopters Book For Kids Ages 3-5: Guessing Game With Picture Puzzles About Numbers And Things That Fly | Children Try To Find ... Rotors | Counting Activities For Preschoolers