An Interview with Katrina Tangen, Author of Copy That, Copy Cat!
NORA NICKUM INTERVIEWS KATRINA TANGEN,
Author of COPY THAT, COPY CAT!
Illustrated by Giulia Orecchia
(Barefoot Books; $19.99, Ages 4-8)
PUBLISHER’S SUMMARY:
This rhyming, lift-the-flap picture book of riddles introduces children to biomimicry in a thoroughly fun format. From sonar to snowshoes, discover concrete examples of human inventions that copy things found in nature. The story invites readers to guess the answers to riddles based on rhymes and visual cues that peek through die-cuts. Page turns reveal surprise answers that show how inventions mimic biology, with additional information under flaps. Endnotes include lift-the-flap guessing games to reinforce learning.
INTERVIEW:
Nora Nickum: Katrina, Copy That, Copy Cat! is such a fantastic book. I love how you used rhyming riddles where the answer isn’t what the reader expects. Kids love surprises! Can you tell us what inspired you to write about this topic and use this rhyming riddle approach?
Katrina Tangen: Thank you! Fittingly enough, I was quite a copycat for this book! It was inspired by two main things. The first was Abi Cushman’s Animals Go Vroom!, which uses misdirection to set up hilarious page turn surprises. I loved it, but kept wanting it to rhyme to set the joke up even more. So I tucked that away as an idea of a format I wanted to try sometime.
The other was my sister Heather, who is a high school science teacher. I was brainstorming nonfiction ideas and asked her for some STEM topics. One of her suggestions was biomimicry—which I’d never heard of! So she explained (although I only sort of understood) and I stuck it in my notes, along with a vague idea of a puzzle component.
A month or two later, the idea of combining them popped into my head. I started researching that day and finally started to understand what biomimicry actually was!

NN: How did you decide which inventions to include?
KT: There are several other great picture books about biomimicry, but they tend to skew older and focus on cutting-edge inventions. I wanted to go younger and focus on everyday inventions. So, it’s about how airplanes work at a basic level, rather than a specific way of improving an airplane, like winglets. That felt more accessible and also let me explain the basic science behind the inventions. As a bonus, I wound up being able to include a lot of the cutting edge inventions on the cover and in the backmatter!
NN: Were there any fun inventions you ended up not having room to keep in the book?
KT: It was hard to choose—there are so many cool ones! Octopus/suction cup made it into the manuscript but got cut in editing because of space. (Although the first suction cups were actually gourds.) Finding anything to rhyme with “octopus” took forever!
And Velcro (which was inspired by burrs stuck in a dog’s fur) never made it in at all. I wanted to include it because it’s such a fun, kid-friendly invention. But all of my others were animals, and this was really about the plant. Plus, I didn’t think any kid was going to be able to predict the word “burr”!
NN: Did you pitch the book with the interactive die-cuts and lift-the-flaps, or was that element added later?
KT: No, that all came later. I never thought I’d have die-cuts or flaps—much less both!
One of the first things my editor Autumn wanted to talk about was adding some kind of interactive element. Originally, the idea was specifically “like flaps, but something else.” So I researched lots of board book interactive elements. We looked at different mechanisms for the transition from the animal to the invention. We also considered interactive demos of the science or invention. My favorite idea was a wheel you could turn to fill and empty the submarine tank, which would have been cool!
Eventually, we decided that the page turn already worked well for the reveal, but adding the die-cut would make it even better. So then we researched different ways to use die-cuts (Giulia Orecchia, the illustrator, has some other books that do cool things with them!). In the end, we decided to copy from Animals Go Vroom! again. Abi’s book uses a die-cut to show the animal and then when you turn the page, you see the animal in the context of the whole scene, which reveals the joke. Copy That, Copy Cat has the extra layer of tricking you into seeing an animal in part of the invention. Giulia did such a good job with that!
The big flaps work really well to add space for the science explanations without taking up all the illustration space. And they can even be in a nice big font, which I appreciate!
NN: It’s so cool to hear about how all those design decisions were made. And Giulia’s art is wonderful. The interactive back matter is really intriguing, too. Kids will have so much fun with it! How did you decide what to include in the main rhyming text, and what would fit better here at the end?
KT: Originally, I just had normal backmatter—further reading and a podcast and music to check out, and a bibliography. The fun backmatter all came after the plan to add interactive elements during editing. We talked about having an interactive element on each spread, so I came up with one for each invention. Then there wasn’t space, so they got moved to the back and a couple were replaced by Fun Facts.
The airplane/bird one was changed quite late because we couldn’t get a for-sure answer on part of the science in the original version. That was stressful because I had to research the new one very quickly. Figuring out which wing goes up to turn which way was tricky—I still have to act it out to be sure! But I think it turned out well and, as my nephew has discovered, it makes a fun (very) mini flip book!
NN: Those last-minute changes can be hard, but it turned out great! Something else I’m curious about: You have a small space for the “How does it work” text under each flap, and you’ve done a great job making things concise and clear within those constraints. Was it difficult to pare those explanations back to the most important elements and write them in kid-friendly ways?
KT: Yes! First I had to study the topic enough to understand it, then explain it clearly but succinctly, using simple words. (Much easier to do any two of those three at a time!) Some of them were pretty straightforward, like the flippers and snowshoes. But the airplane wing was a little tricky, and the bike reflector was almost the death of me! Explaining how eyes work, how mirrors work, and then how retroreflectors work all in a couple of sentences is not for the faint of heart. I’m glad we were able to have the diagrams take on some of that job—particularly because in figuring those out, I realized that, in streamlining the text, I’d messed up part of the science. Glad we caught that in time!

NN: Shifting from you as an author to you as a reader: What books did you most enjoy when you were a kid?
KT: I loved to read, especially mysteries. And writing nonfiction is kind of like solving a mystery. You investigate, collect evidence, make connections, and fit it all into a pattern that (hopefully) snaps together at the end in a satisfying way.
NN: I love that comparison between writing nonfiction and solving mysteries! Were there any nonfiction children’s books that drew you in when you were young?
KT: I wasn’t really a nonfiction kid. Growing up in the ’80s and ’90s, there wasn’t the range of kid’s nonfiction we have today. I’m sure there were some great books that I missed, and I bet there were nonfiction books in my picture book reading that I don’t remember. One I do remember (for the unusual title) is How God Gives Us Peanut Butter, which showed how peanut butter is made. And I did love process videos, like when Mr. Rogers would take us to see how a mailroom runs, etc.
But my impression in elementary school was that nonfiction was all educational textbook-y books or browsable photo-illustrated books designed for reluctant readers. (Plus they always seemed to be about sports, and I was not a sporty kid!)
NN: It really is great that there’s so much more creative nonfiction for kids to find on shelves today–with your book being a fantastic new addition. Now, to wrap up, a super important burning question: Would you rather have flippers like a frog, or sticky feet like a gecko?
KT: Gecko feet would be super fun—or maybe echolocation, so I’d never run into things in the dark!
NN: Even better! Thank you, Katrina, for sharing the behind-the-scenes stories about the making of Copy That, Copy Cat! I know kids and adults alike are going to really get a kick out of it and learn a ton.
BUY THE BOOK:
Bookshop.org: https://bookshop.org/p/books/copy-that-copy-cat-inventions-inspired-by-animals-katrina-tangen/19800210?ean=9781646869992
Publisher’s Page: https://www.barefootbooks.com/3/copy-that-copy-cat-board-book
SOCIAL MEDIA LINKS:
Twitter: @katrinatangen
IG: @katrinatangen
Facebook: https://www.facebook.com/katrinatangenauthor
Author website: www.katrinatangen.com

AUTHOR BIO:
Katrina Tangen lives in Southern California between Disneyland and the beach. At Harvard, she studied Folklore & Mythology, History of Science, Psychology, and Religion, so she knows a little bit about a lot of things. This turned out to be excellent training for writing nonfiction for kids! Katrina is disabled by severe ME/CFS (Myalgic Encephalomyelitis). She writes fiction and nonfiction for kids of all ages; Copy That, Copy Cat! is her debut. Profile pic photo credit: Katrina Tangen
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INTERVIEWER BIO:
Nora Nickum is the author of Superpod: Saving the Endangered Orcas of the Pacific Northwest (Chicago Review Press, 2023) and the forthcoming nonfiction picture book This Book is Full of Holes (Peachtree, 2024). Her stories and articles have appeared in children’s magazines like Cricket, Ladybug, and Muse. Nora also leads ocean conservation policy work for the Seattle Aquarium. She lives on an island in Washington state. Learn more about her at www.noranickum.com.
Twitter: @noranickumbooks
IG: @noranickumbooks
FIND THE ILLUSTRATOR AT THE LINKS BELOW:
Twitter: @GiuliaOrecchia
Instagram: @giuliaorecchia
Website: https://giuliaorecchia.it
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