Yet another student goes to the head of the class in Ada Twist, Scientist, the most recent picture book from Andrea Beaty and David Roberts, whose earlier collaborations include Iggy Peck ...

Born in Denver on May 29, 1943, David Stuart Roberts spent his early years in Climax, Colo., then the nation’s highest settlement, at 11,360 feet, and today a ghost town. His family moved to ...