DAVID CARPENTER KNIGHT (August 6, 1925 - May 19, 1984) was an American author and publisher. He was best known for writing juvenile books on science, as well as fiction. He was born in Glens Falls, New York in 1925 and graduated from Union College, Schenectady, New York. A veteran of World War II, he also attended the Sorbonne in Paris. Knight worked in industrial electronics before entering book publishing and becoming the editor in a New York publishing house. A prolific author, Knight wrote numerous books, including The First Book of Sound: A Basic Guide to the Science of Acoustics (1960), The First Book of Air: A Basic Guide to the Earth’s Atmosphere (1961), Isaac Newton: Mastermind of Modern Science (1961), Johannes Kepler & Planetary Motion (1962), Copernicus: Titan of Modern Astronomy (1965), Comets (1968). He was also a contributor to The Book of Knowledge. David C. Knight died 1984, aged 58. GUSTAV SCHROTTER (May 28, 1901 - June 25, 1971) was an Austrian children’s book illustrator and comics book artist during the Golden Age of comics in the 1940s. He was born in Vienna, Austria and moved to the U.S. in 1940. He began working as a freelance artist in 1942, drawing features for comic books produced by Lloyd Jacquet of Funnies Incorporated. He illustrated Novelty’s ‘Dan’l Flannel,’ which appeared in Target Comics, Blue Bolt and Most Comics, and drew several features for Timely, including ‘The Angel,’ ‘Captain Dash,’ ‘Daredevils Three,’ ‘Nellie the Nurse,’ ‘The Patriot’ and ‘The Vision.’ In the 1950s Schrotter became a successful illustrator of educational books for young readers, including You and Your Senses (1956), Noah Carr, Yankee Firebrand (1957), River Showfolks (1957), Comets (1957), Shooting Stars (1958), Your Heart and How it Works (1959), Discovering Dinosaurs (1960), and many more. He died in Austria in 1971, aged 70.