WASHINGTON, Mar 20, 2012 (BUSINESS WIRE) -- Seymour Simon, one of the country's most prolific children's science book authors, was once asked what makes a great science book for young readers. He replied: "A lot of it has to do with the writing -- it’s important that it be clear, interesting, accurate in its science information, and stimulating in opening up a new world or aspect of science that readers never considered before."Simon, whom the New York Times called "the dean of [children's science] writers," is among 36 esteemed authors in science who will excite and engage young readers April 28-29, 2012, in Washington, DC, when these writers appear as Featured Authors at the USA Science & Engineering Festival Book Fair, hosted by Lockheed Martin, the nation's largest celebration of science and engineering.