Best of the year Non-fiction! This is the last list. Notice that Heart and Soul (which showed up on every single best-of-the-year list I consulted, even the ones that are not included in the Wordle) is listed both in the Picture Book list and this Nonfiction list--that is because it is listed in both categories by various journals.
Click on this Wordle so you can see a full-size, readable link and print it. The larger the title, the more frequently it was listed in a Best of the Year list. Sources consulted include: School Library Journal, Hornbook, Kirkus, Publishers Weekly and New York Times.