Kathleen Krull is an award-winning author of a number of highly praised nonfiction books for children, including The Boy Who Invented TV and the Lives Of series. She lives in San Diego. For more, visit her on Facebook or at kathleenkrull.com.<br> <br> Maple Lam is a children's book author and illustrator. She loves creating characters and constructing worlds around them. In her spare time, she loves reading about history. She lives in Los Angeles. For more, visit her at maplelam.com.