Last year, Annaka Harris published a children’s book that was ideal for atheist parents. It was called I Wonder and it was about a little girl who learned that it was perfectly fine to say “I don’t know” regarding the mysteries of the universe.

Well, here’s some exciting news: From now through Mother’s Day (May 11), you can download a PDF of the book for free. Get it while you can, even if you don’t have children, because it’s a fine example of Humanist values showcased in a very accessible format. We need more books like this.