Did you know the Great Barrier Reef is visible from the moon? Or that the killer whale is actually a dolphin? From an island called Atlantis to single-celled plants called Zooxanthellae, W is for Waves: An Ocean Alphabet is brimming with nautical facts that will intrigue, excite and amaze readers of all ages. Presented in a two-tier format, it has rhymes for younger readers and a detailed sidebar with text for older readers, making it a perfect way for parents and kids to enjoy time together while learning the wonders of the oceans. Writers Marie and Roland Smith team with illustrator John Megahan to provide fun, educational information set against a colorful backdrop (Sleeping Bear Press, $17.95).