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Oak Leaf book
#1
Oak Leaf
Written by John Sandford
picture book
Recommend Ages: 5-7

An artistic picture book about an autumn leaf's journey that beautifully evokes the season A lone autumn leaf falls and flies away on a breeze. It travels up and over the world and down again--where it finally lands on the page of a little girl's open book and becomes a keepsake.

Oakwing book
#2
Oakwing
Written and illustrated by EJ Clarke
chapter book
Recommend Ages: 7-11

After Rowan is mysteriously transformed into a tiny fairy, she is thrust into a world of fairy clans and talking robins where, she discovers, her long-missing mother is also trapped.

Ocean book
#3
Ocean
Written by Ricardo Henriques and illustrated by André Letria
board book
Recommend Ages: 8-12

Half of our planet is covered by the ocean, yet we've only explored 5 percent of this vast underwater realm. Originally published in Portugal, and awarded a highly coveted BolognaRagazzi Mention by the Bologna Book Fair, this visually compelling miscellany offers readers a tsunami of aquatic facts. Which ocean is the largest? Who was the first explorer to sail around the world? Is the ocean truly blue? Beautifully designed and rich with information, Ocean will satisfy enthusiastic readers who enjoy taking a deep dive into a subject as well as more reluctant readers who prefer to dip in and out of a book.

Ocean Emporium book
#4
Ocean Emporium
Written by Susie Brooks and illustrated by Dawn Cooper
picture book
Recommend Ages: 5-9

With a nod to the Victorian-era fascination with natural history collections and drawings, young readers will be awed by this compendium of ocean creatures and will learn how creatures great and small are interconnected in this mysterious ecosystem. From plankton and krill, to corals and crabs, to sea dragons and squids and swordfish and more! The oceans are teeming with life! Find out fascinating facts about these animals and how they survive deep beneath the waves.

Ocean Meets Sky book
#5
Ocean Meets Sky
Written by Terry Fan and illustrated by Eric Fan
picture book
Recommend Ages: 4-8

It’s a good day for sailing. Finn lives by the sea and the sea lives by him. Every time he looks out his window it’s a constant reminder of the stories his grandfather told him about the place where the ocean meets the sky. Where whales and jellyfish soar and birds and castles float. Finn’s grandfather is gone now but Finn knows the perfect way to honor him. He’ll build his own ship and sail out to find this magical place himself! And when he arrives, maybe, just maybe, he’ll find something he didn’t know he was looking for.

Ocean Motions book
#6
Ocean Motions
Written by Caspar Babypants and illustrated by Kate Endle
board book
Recommend Ages: 0-3

Adorable ocean creatures sway, jiggle and play, glide, flip, and dive in this beautiful board book from indie collage artist Kate Endle and children's music star Caspar Babypants. Toddlers will love this colorful board book about ocean creatures, featuring beautiful and playful collage art by indie artist Kate Endle and the clever word play of Seattle songwriter Caspar Babypants. Walruses warmly wave! Sea turtles tip and flip. River otters race through the ripples. Belugas blow bubbles.

Ocean Renegades! book
#7
Ocean Renegades!
Written and illustrated by Abby Howard
chapter book
Recommend Ages: 8-12

"Determined to show Ronnie just how interesting prehistoric life was BEFORE the age of the dinosaurs, Miss Lernin takes her back in time to the six parts of the Paleozoic era to study the earliest lifeforms on Earth, starting with the rise of the vertebrates"--]cProvided by publisher.

Octopus Alone book
#8
Octopus Alone
Written and illustrated by Divya Srinivasan
picture book
Recommend Ages: 3-5

Octopus loves living on the busy reef under the sea. From her cozy cave, she can see clown fish, and sea turtles, and little butterflies swimming by. She especially loves watching the seahorses having fun, wiggling and twirling. Sometimes she will play with them, but occasionally Octopus just wants to be alone, somewhere quiet, and not so busy. So one day, she swims far, far beyond the reef and finds another cozy cave, only here she is perfectly, wonderfully alone. It is exactly what she wanted . . . until she’s ready to go back home to be with her friends. As she did in Little Owl’s Night, Divya Srinivasan shows children a wonderful part of the natural world in a very warm-hearted way.

Octopus Escapes! book
#9
Octopus Escapes!
Written by Nathaniel Lachenmeyer and illustrated by Frank W. Dormer
picture book
Recommend Ages: 2-5

Octopus slips out of his tank while the aquarium sleeps, teases the animals in the other displays, and leads the security guard on a merry chase.

Octopuses One to Ten book
#10
Octopuses One to Ten
Written by Ellen Jackson and illustrated by Robin Page
picture book
Recommend Ages: 2-8

"A fascinating counting journey through the amazing and mysterious world of octopuses"--

Odd Animal Abc's book
#11
Odd Animal Abc's
Written by June Smalls and illustrated by Claire Sedovic
picture book
Recommend Ages: 3-5

A is for Alligator, B is for Bear, and so on, right? Not in this book. The odd animals are taking over! It's time to meet Aye-Aye, Fossa, Numbat, Xenops and more curious, yet real animals that are ready for their spotlight. Laugh along as they introduce the letters of the alphabet in their own odd way!

Odd Couples in Nature book
#12
Odd Couples in Nature
Written by Pavla Hanackova and illustrated by Linh Dao
picture book
Recommend Ages: 5-9

Life is better with a friend! Many animal species think so, too. This book explores the strange and wonderful ways in which some very different types of creature help each other out. You’ll see clownfish making deals with stinging anemones, ants farming aphids, zebras being groomed by oxpecker birds, and much more besides. Come with us on a journey through the natural world and discover that friendship can be found practically everywhere! Packed with bite-sized knowledge and charming illustrations.

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