Celebrate the 20th anniversary of one of the most popular good-night books ever. Simple verse and hilarious illustrations present common scenes of sly humor as enormous dinosaur children yawn and fuss and throw their toys about-before finally going to sleep.Wildly popular, this book set off an award-winning series with more than 15 million books in print, and it's still going strong. Children will find the name of each dinosaur hidden in the pictures, which are a delight from start to finish. Be prepared to read it again and again!