Everyone needs to know where to put an apostrophe
to make a word plural or possessive (Are those sticky things your
brother’s or your brothers?) and leaving one out of a contraction can
give someone the completely wrong impression (Were here to help you).
Full of silly scenes that show how apostrophes make a difference, too,
this is another picture book that will elicit bales of laughter and
better punctuation from all who read it.