Dinosaurs
Roam the prehistoric world
Four books. Four incredible worlds.
Recommended for ages 6–12A Child’s Guide To…
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Choose your next adventure
Use the arrows to uncover a world.
Pick a path
Four worlds are waiting
Read the original books or wander through every habitat one discovery at a time.
The Ocean
Dive beneath the waves
The Rainforest
Step into the wild
The Savannah
Explore the great plains
Why digital?
Big adventures.
A lighter footprint.
These books live online so curious children everywhere can explore the natural world without using more paper. Learning travels farther, updates stay easy, and every new reader can join the adventure.
4worlds to explore
100%free to discover
About the project
Made for curious explorers ages 6–12Books built for curious minds.
A Child’s Guide To… is a growing digital library for children who want to understand the wild world around them. Each illustrated book mixes real facts with jokes, puzzles, comics, hidden clues, and activities - turning science into an adventure children can lead for themselves.
The website keeps the original page-turning experience while opening the door to interactive discoveries beyond the books. It is designed to travel anywhere, reach readers globally, and use less paper along the way.
Meet the four books ↑
Meet Amelia & MaxYour guides to every world
Meet the author
Hi, I’m Zreh.
Zreh Adajania is a young author, environmental advocate, wildlife photographer, and lifelong animal enthusiast from Mumbai. Fascinated by dinosaurs from an early age, he created A Child’s Guide To… to help young explorers discover the natural world through colourful illustrations, surprising facts, humour, and hands-on activities.
Whether diving beneath the waves, photographing wildlife, or studying prehistoric life, Zreh believes that learning should always feel like an adventure.
Reviews & testimonials
What are explorers saying?
Readers, students, researchers, and environmental advocates share what they enjoyed about exploring the four worlds.
Share your review ↗“Having four different books covering the savannah, rainforest, oceans, and dinosaurs makes it really fun to go through, especially since each one has a completely different set of animals to discover. Really solid work and definitely worth checking out.”
Ansh JalanSTEM Student
“As someone who has always been a huge environmental advocate, seeing an interface where children can become more educated on the different domains of the environment and the wonderful array of creatures that inhabit them warms my heart.”
Rian KothariEnvironmentalist
“Exploring four distinct volumes covering savannahs, rainforests, oceans, and dinosaurs makes the learning process incredibly engaging. Every single book introduces a completely fresh set of wildlife, making this a fantastic, well-crafted resource.”
Hitansh JainQuantitative Trader
“The four-habitat structure is what makes it work - dinosaurs, ocean, rainforest, and savannah each feel like their own world rather than chapters of one book. Having Amelia and Max guide you through gives it a throughline kids will actually follow. Clean, fast, and free, which is rare for something this well-illustrated.”
Roansh DesaiComputer Science Student
“An amazing and interactive way to learn about nature and the environment. Would definitely recommend this to children of all age groups.”
Ranveer ChainaniStudent
“This is fantastic work, my 5 year old son just spent the last 2 hours going through this website. Got to love an educational use of screen-time.”
Paul JacobsData Scientist
“I think this is a really unique way of sharing such important values with children, it is our duty as parents to instil a sense of awareness on the different climates and regions of our planet and their gorgeous inhabitants. A great show of talent from the author.”
Nathan AgarwalGeography Professor
“A Wonderful Children’s Book! This book is a fun, heartwarming, and enjoyable story for children. I really liked the characters - they were interesting and easy to connect with. The illustrations were also colourful and eye-catching - they made the story even more engaging. The story has a simple but meaningful message - it teaches children an important lesson while still being entertaining. The ending was also very satisfying - everything came together nicely. Overall, I would definitely recommend this book - it is fun, meaningful, easy to read, and full of imagination.”
Dhruv AnandGuitarist
“As someone who has spent a lifetime out on the water, reading this book felt like taking a long deep breath of sea air. It gets the rhythm of the tides, the quiet dignity of marine life, and the deep respect every good angler holds for the water. What I appreciate most is how it teaches the next generation to look at the sea - not just as a place to catch fish, but as a living world we have to protect. It’s simple, honest, and captures the genuine heart of life on the water. A grand read for any young landlubber.”
Yuvraaj KumarGamer
“Such an accessible yet impressively detailed approach to learning about the environment and instil awareness in younger generations. So cool to see!”
Tzara DamaniaStudent
“Extremely accurate and profoundly entertaining! Good job!”
Pavit LaunganiStudent Researcher
“A great outlook into animals!”
Krish ChandraEV Manufacturer
“A beautiful representation of the underwater realm.”
Sumer VermaScuba Diving Instructor
“Love the world map feature!”
Nyrika MehtaStudent
“This is some great work. Love the enthusiasm.”
Aarush GuptaEVS Student
“Amazing work! Love the visuals!”
Rayyan OomerbhoyArt Student
“These books were quite phenomenal, showed them to my little brother and he really enjoyed them. Wish they were physical copies.”
Yash BhatiaLaw Enthusiast
“This is so fun!”
Franklin GordanArchitect
“I love the lions and zebras!”
Priyansh MishraStudent
“My favourite is the dinosaur one! So cool to learn about them.”
Arnav R. VardhanStudent
“This is magical. Wow wow wow! Great job Mr. Adajania”
Raina KothariPhysics Student
“I love this website. I am now so widely educated on dinosaurs.”
Theia GinwallaStudent