The scenario is absolutely authentic: Jamaica is embarrassed by her hand-me-down boys' boots and jealous of Brianna's pretty pink ones; when Jamaica's wear out, she chooses cowboy boots so Brianna won't say she copied—only to have Brianna tell her that they ``aren't in''; hurt, she declares Brianna's ``ugly.'' All comes right when the two finally level: Brianna's boots are also hand-me-downs, and she can't wait to grow so she can replace them. Yes, the story's about boots—as important an arena for choice and identity for small children as for their elders—but it's also, in Havill's simple, beautifully honed text, about friendship. O'Brien's warm, realistic illustrations of this vibrant African-American and her lively Asian-American friend are just right. (Picture book. 4-8)