Explore a New World Beneath the Surface
Underwater Friends A-Z
About the Author
Csilla Vasarhelyi
Biologist, Educator, Author
I originally wrote Underwater Friends A-Z for my friends’ children—little ones who live too far away for me to share my love of the ocean with in person. I wanted them to still feel connected to their fish-loving aunt and friend, even from a distance.
As I wrote, I realized that so many kids could benefit from this book—not just those who know me, but any child with a curiosity for the underwater world. My younger self would have loved it! My hope is that Underwater Friends A-Z sparks wonder, encourages learning, and helps young readers fall in love with the ocean and freshwater environments, one fascinating creature at a time.

Book
Underwater Friends A-Z
Dive into the ABC's of aquatic life - ocean and freshwater!
Embark on an exciting A-Z journey through oceans, rivers, and lakes! Underwater Friends A-Z introduces young readers to fascinating aquatic animals, from the mighty Arapaima of the Amazon to the fascinating Vampire Squid from the deep sea.
Each page features:
✔ Playful rhymes & alliteration to make learning fun
✔ Engaging facts about creatures from both freshwater and saltwater habitats
✔ Beautiful illustrations that bring the underwater world to life
Written by biologist and educator Csilla Vasarhelyi, this book is perfect for curious kids, enthusiastic parents, and anyone that loves the water. Whether you’re discovering beautiful bullsharks, humongous humpbacks, or yummy yellow perch, Underwater Friends A-Z makes learning about aquatic life a memorable experience.
Perfect for ages 2-12| Great for classrooms, aquariums, and bedtime reading!
Upcoming Events
Underwater Friends A-Z Book Reading at Vancouver Aquarium!
Celebrate World Book Day with us! Join author Csilla for two special book readings at Vancouver Aquarium, and stick around for the interactive Sea Search Activity! Find all 10 characters from the book live on display at the aquarium and win a sticker!
Bring your curiosity and love for the ocean, can’t wait to see you there!
Date: April 23, 2025
Time: 10:30 am & 12:00
Location: Vancouver Aquarium
