National Punctuation Day Celebrate proper punctuation on Tuesday, September 24, 2013. Use the resources below to plan your own punctuation party. The three hilarious punctuation books written by Lynne Truss and illustrated by Bonnie Timmons are fun for ages 6 and up: Eats, Shoots & Leaves: Why, Commas Really Do Make a Difference! (adapted from the #1 best seller) Girl's Like Spaghetti: Why, You Can't Manage Without Apostrophes! Twenty-Odd Ducks: Why, Every Punctuation Mark Counts!