Hooray! Hooray! It's Mermaid Day! From the best-selling creators of Unicorn Day comes a mer-tastic celebration as all sorts of sea creatures celebrate Mermaid Day! On Mermaid Day, the mer-queen throws a fin-tastic party! She decorates her underwater castle and creatures of all kinds swim inside to celebrate together. Dolphins dance, narwhals play ring toss, and as night falls, the guests prepare to say goodnight to a mer-mazing day. But are all welcome to celebrate under the sea? This heartwarming and inclusive story is the perfect companion to the bestselling Unicorn Day ! Hooray Hooray! It's Mermaid Day! Shake your tail fins! Splash and play! The Perfect gift if you're looking for: Mermaid books for boys and girls ages 4-10 - A fun-filled bedtime story - Colorful, beautiful animal stories - Children's books about mermaids - Mermaid gifts for little girls and boys ★ "A beautiful mermaid celebration... A must read for all those mermaid sea-loving young readers and those who enjoyed Unicorn Day ." — Youth Services Book Review, STARRED review "Mermaid fans will turn the pages again and again...a joyful romp from beginning to end." — Kirkus Reviews "Full of rhyming text and eye-popping color, this underwater romp is perfect for summer fun." — The Fairview Review " This [new] release by the duo behind Unicorn Day features energy-driven lyrics with rhyme! On Mermaid Day, the mer-queen throws a fin-tastic party, decorates her castles, and invites all kinds of underwater guests. But when a big, bad shark arrives, will the queen allow him to stay?" —Scary Mommy Best Books of July 2023 Amazon Editor's Pick Diana Murray is the author of over twenty five children's books, including UNICORN NIGHT , an Amazon Best Book of the Year from the bestselling UNICORN DAY series, and GOODNIGHT, VEGGIES , a Jr. Library Guild Selection. Her poems have appeared in many magazines and anthologies. Diana grew up in New York City and still lives nearby with her husband, two mer-children, and a dog who loves trips to the beach.  Luke Flowers has illustrated more than 75 children's books. Most notably, the New York Times Bestseller "A Beautiful Day in the Neighborhood" poems by Fred Rogers, the award-winning "Unicorn Day", by Diana Murray, and Disney's "The Muppet Christmas Carol" storybook. He is also both author and illustrator of "Jim Henson's Labyrinth ABC Storybook" and the "Moby Shinobi" series with Scholastic. The "Moby Shinobi" book series has sold over 2 million copies since book #1 was published in 2016. When Luke isn't illustrating or writing in his creative cave he enjoys puppetry, playing banjo, basketball and outdoor adventures with his family. He lives with his wife and three children in Colorado Springs. Colorado.