Superheroes and steampunk come together in 19th century New York. Sir Dennis Darby has been murdered, the Automaton has been destroyed, and Sarah Stanton has tu

"The Most Powerful Idea in the World argues that the very notion of intellectual property drove not only the invention of the steam engine but also the entire I

For fans of the Sir Cumference series with Pi on their mind, here is the second installment in this fun look at math and language. This time the math adventure

Twin mice solve a problem using STEAM in this early chapter book for young artists, inventors, and creative thinkers—featuring illustrations from the award-wi