Wallmark, Laurie. Ada Byron Lovelace and the Thinking Machine. April Chu, Illus. Biog. Creston, 10/2015. [40]pp. $17.99. 978-1-939547-20-0. OUTSTANDING. GRADES 2-5. Dramatic full-color pencil drawings that look like paintings combine with a concise, factual text [continue reading]