Juneteenth Jamboree

Starring a likable girl named Cassandra, Weatherford's debut introduces readers to Juneteenth, which commemorates the events of June 19, 1865. On that day Texas slaves learned about their emancipation-an astonishing two and a half years after Lincoln signed the proclamation. Cassandra, newly moved to Texas, doesn't know about the holiday-her parents and other relatives are cooking, dancing and dressing up a storm, all the while telling her to expect a surprise (the only hint is that it's a Texas tradition). She is duly astonished by the rousing Juneteenth celebration, with its shows, parade, crafts and cheerful spectators. Although wordy, the enthusiastic text allows readers to discover-and celebrate-the holiday along with Cassandra. But the larger treat is newcomer Buchanan's loose pen-and-ink and watercolor art. Festive and full of mirth, her fluid, motion-packed lines put a visible spring in her characters' steps, and her palette is as summery as lemonade and blue skies. Ages 4-8. (Oct.)