Gerald is careful. Piggie is not. Piggie cannot help smiling. Gerald can. Gerald worries so that Piggie does not have to. Gerald and Piggie are best friends. Piggie tries to teach Gerald some new dance moves, which doesn’t go well. But perhaps Gerald can teach Piggie something even more important? Mo Willems creates another hilarious escapade starring the award-winning duo that will have early readers breaking into laughter from the first page.