David King Dunaway is a historian and author whose work examines cultural history, technology, and perception. He wrote A Four‑Eyed World: How Glasses Changed the Way We See, published by Bloomsbury, which explores the history of corrective eyewear and how eyeglasses have shaped human vision, culture, and social experience. Dunaway’s research traces developments in optics, visual culture, and everyday technologies to show how tools for seeing have influenced science, identity, and the ways societies understand perception.