Herbert loves the slide, and in this first of four irresistible miniature full-length picture books, the littlest readers are introduced to new friends and the charming world of the Hippo Park playground.

Herbert loves the slide! Climbing up the ladder, sitting himself down, sending Teddy down first-it's all the best part. Herbert imagines sliding down into a magical underwater world and being chased up a mountain by a bear-preschoolers will love Herbert's adventures playing on the slide, and thrill to this first visit to Hippo Park.

All four Hippo Park Pals mini picture books are set in the playground, where the animals play, imagine, and have lots of feelings-just like preschoolers do.

Rilla Alexander is a creative force: an illustrator, author, and a designer. She lives in Pasadena, California, but grew up in Australia and lived in Berlin for 10 years. Rilla wrote and illustrated the Motor Mix novelty books as well as The Best Book in the World. She illustrated A Bear Sat on My Porch Today by Jane Yolen; and Swarm of Bees by Lemony Snicket. Rilla has a brand-new puppy named Spot who can be seen in action on Instagram.

Herbert squeezes the fun out of each moment in this first of four irresistable minature picturebooks featuring two hippo siblings at the playground.

Herbert loves the slide! Climbing up the ladder, sitting himself down, sending Teddy down first--it's all the best part. Whether Herbert imagines slipping down into a magical underwater cave or pretends he being chased up the slide by a bear--preschoolers will relate to the rules of the slide, and thrill to this first visit to Hippo Park, the setting for an exciting new series that captures the excitement toddlers feel when they play, while introducing early social emotional concepts, too.