The Sour Grape Jory John; Author Pete Oswald; Illustrator A sour grape is unpleasant to taste. An unpleasant person can be called a ‘Sour Grape’. Such was the large green grape in this silly, delightful, colorful picture book, The Sour Grape (6th book in the Food Group series). Sour Grape complained about many things like fireworks […]