This is the book, Dollar Bill Fighter Planes by Won Park, which provides instructions for folding origami aircraft from US currency. The book features a variety of fighter planes, including the F4U Corsair, P-51 Mustang, and the Zero Fighter. It is a guide for creating intricate origami designs using dollar bills. The designs require patience and attention to detail, sometimes recommending tools like tweezers for the tiny folds. Won Park is a noted origami artist known for his detailed money-folding creations