Henry Petroski is the author of twenty nonfiction trade books, including The Pencil and The Evolution of Useful Things, which consider the invention, design, and cultural significance of common objects. He is a distinguished professor emeritus at Duke University.
Mike Lenz has been an audiobook narrator and voice actor for more than fourteen years. Having narrated titles in genres ranging from fiction, entertainment, science, and children's literature to Christian, business, self-help, and history, Mike loves bringing nonfiction and fiction stories to life.