As with all the titles in the Being the Best Me series by Cheri Meiners, this is well-suited for young readers and those working with them. The book goes through various situations that children experience and points out the possibility for approaching each one with a positive attitude. There are games, activities, and discussion notes for children and adults at the end of the book. Be Positive! could be used on its own, or as part of a series of lessons built around the books. I would recommend it to parents, teachers, and other caregivers working with younger children.
For more information about the series, check out the author's website.