The simplest Willems for the youngest use, but really perhaps too simple. I agree with a reviewer who stated this might be better suited as a board book than in picture book form. It's saved by the alien/monster at the end ("Blarggie Blarggie!") and a sweet message, though.

Read my full review and comparisons to other books at my blog: http://shorteasywordsreviews.blogspot.com/2011/02/storytime-22211.html