Twindergarten, by Nikki Ehrlich

Dax and Zoey are biracial twins (with a white mom and black dad) are are starting kindergarten, but in different classes.  Dax is initially quite afraid of being separated from his sister, but it turns out that Zoey is the one who has a lot of difficulty being away from Dax on the first day of school.  In the end, Dax makes Zoey a card and Zoey starts to relax into school, and all is well!

This is a simple story with delightful details and presents school in a positive light.  My son is a couple years away from kindergarten (and is frightened at the prospect of being in a big kid school every single day), but seems to find this book soothing.  Dax, Zoey, and their classmates are presented as thoughtful, fun, and kind (a contrast to books which seem to highlight the worst aspects of kids... ahem llama llama).

BUY HERE (or request at your local library!)