Sand shark Flip wants to take the stage at school Joke Day, but he just needs a little practice. On the big night, Flip is struck with stage fright, but his twin Fin is there to help. This book is filled with so many fishy puns and visual quips that more than one read is sure to be demanded. Brief marine animal facts are appended.

These twin sand sharks just love a good joke. Flip and Fin are on their way to school when Flip tries out a joke on his brother: "What did the sawfish see?…He saw fish!" Ouch. Fin tells his twin that with Joke Day coming up at school, Flip is going to need a lot of practice to measure up. At school, while Fin builds a sandcastle with Swimmy the jellyfish, Flip tries out a joke on Molly the anglerfish. He forgets the punch line. When Flip and Fin play superheroes, though, Flip's jokes improve—must be the cape. He keeps practicing. When Joke Day arrives, the big kids tell great jokes…but even with his cape on, Flip gets stage fright until Fin helps out from the audience. Then all the sea creatures have a joke-a-thon. Gill's tale of finny, fraternal support is a fine fable. Everything works out, and some of the jokes are actually funny (though the audience at Joke Day laughs hysterically at the banana/orange knock-knock joke without the necessary setup). Numberman's watercolor illustrations are inviting, expressive and silly in their cartoon, saucer-eyed exaggeration. The fishy facts at the close are a plus. Particularly good for kids not ready to move beyond nonthreatening shark stories. (Picture book. 5-7)

PreS-Gr 1 Flip and Fin are sand shark twins who live at the bottom of the sea. The two are getting ready for joke day at school, but Flip is having some trouble finding good ones to share. He practices and practices, but when joke day comes, he freezes in front of the entire school. Fortunately, Flip's brother and his friends are in the audience; they yell out jokes, and Flip delivers the punch lines. Soon the whole school is laughing and Flip and Fin exclaim that they are super sharks who rule the school. Vibrant watercolor illustrations offer a cartoonish image of the ocean's floor from pirate booty to a wrecked ship to a variety of crazy undersea animals. Dozens of child-friendly jokes are told throughout, making this a very silly read that will have young jokesters giggling. Jennifer Miskec, Longwood University, Farmville, VA