I'm Nancy Castaldo, a curious author trying to make a difference one book at a time. Thanks for visiting my blog where you'll find curated book selections, musings on the environment, ways to engage students in STEM, and cool things about wildlife. I also have a passion for photography, so you'll find some photos too.
Wednesday, October 15, 2025
Congratulations, Jen Swanson, on 3 Weeks in the Rainforest!
Thank you so much for sharing the release of 3 Weeks in the Rainforest with us! 
Young readers love STEAM books and I’m sure yours will find many happy readers. Can you share with us a bit about the inspiration for this book? What was your initial spark? 
A few years ago, I was in Chicago visiting my daughter. She was doing a summer
internship at her college. We decided to visit The Field Museum, and that is where I first
saw the exhibit about the Rapid Inventory Project. We sat down to watch the short video
about the project and I was hooked. The vivid images, the amazing conservation efforts,
and the team of awesome scientists made the Amazon come alive. As I walked through
the rest of the very informative and descriptive exhibit I was enthralled to learn how these
scientists would count every single animal they saw, collect samples, and literally take an
inventory of the biological creatures of that area. But I think the coolest part was that the
social scientists made great effort to include the local communities and Indigenous
Peoples in their reports. The people who live in that area should have a lot of say in how
it would be set up as protected lands.
What made you want to write this book for kids? 
Because I think it’s a great way for them to see how people from
different backgrounds and different countries can come together and collaborate to
protect one of the world’s most amazing resources: the Amazon rainforest.
Writing STEAM books requires a substantial amount of research. Often it is the most fun part of our writing process, but also has a share of challenges. Did you meet any challenges during your research journey?
While I started writing this book in 2018, it was sold at the end of 2019, I began writing it in early 2020. We all know what happened then. Because of the pandemic, I wasn’t able to go to the Field Museum to interview the scientists in person. Talking to them all at once or all in once place would have been better than scattering the zoom interviews over a longer period of time. That made things difficult and also slowed down the project. 
The pandemic had such an impact on all of our writing and research. A more common challenge we face when crafting our nonfiction books is not deciding what facts to include from our research, but deciding which to leave out. What did you choose to leave out of this book and why? 
I had many more stories from the scientists that just couldn’t be included in the book. The book was only so many words long, and we wanted to leave room for many, many pictures. I don’t remember specific stories, but I do remember that we had even more amazing photos that we could have included. To see more, you can go here.:
This book is going to find its way into many classrooms. What tip can you share with teachers who want to use your book with students? 
There are so many things you can do. You could have the students take an inventory of the classroom just like the biologists on the Rapid Inventory Team. You could have them interview people in their neighborhoods to find out anything they would like changed or improved, like the social scientists did. You could have them visit local environments in their area and journal about what they see: animals, plants, people, etc. The idea is to use this book to bring attention to the immediate world where you live. To see what you can do to improve your place on the planet. 
Congratulations on this book release! What comes next for you? Can you give us a peek at what you are currently researching ? 
I am currently working on a book for Harper Collins called ‘How to Talk to an Alien (Should you ever meet one). It’s TONS of fun! This book is for curious middle graders who want to learn more about space, astrobiology and astrogeology, biosignatures, language, and of course, aliens! It’s also going to have activities so that you can create your own “alien language. 
Thanks so much, Jen, for chatting with us today. For more about the author of 3 Weeks in the Rainforest: 
Science Rocks! And so do Jennifer Swanson’s books. She is the award winning author of over 50+ nonfiction books for children, mostly about science and technology. Jennifer’s passion for science and technology resonates in all her books but especially, BRAIN GAMES (NGKids) and  Parents’ Choice Gold Award Winner, Save the Crash-test Dummies (Peachtree Publishing) and her 2021 Kirkus Best Nature book, Outdoor School: Rocks, Fossils, and Shells (Odd Dot). Her books have received many accolades including the starred reviews, Booklist Best Tech books list, Green Earth Book Honor Award, four Florida Book Awards, and multiple California Reading Association awards, National Science Teaching BEST STEM awards. her BRAIN GAMES book was even #13 on  The Planets.org 50 Best Science books Ever Written.
An accomplished and exciting speaker, Jennifer has presented at National NSTA conferences, the Highlights Foundation, the Atlanta Science Festival, the World Science Festival in NYC, the Smithsonian’s Udvar-Hazy Center, and the Library of Congress’ National Book Festival. Jennifer encourages kids (of all ages) to engage their curiosity and DISCOVER the Science all around them! Jennifer lives in Jacksonville, FL with her husband and their dog, Tibs. 
Tuesday, October 14, 2025
Congratulations, Shruthi Rao, on WHEN SCIENCE STOOD STILL!
Thank you so much for sharing the release of “WHEN SCIENCE STOOD STILL: How S Chandrasekhar Predicted the Existence of Black Holes” with us! 
Young readers love STEAM books and I’m sure yours will find many happy readers. Can you share with us a bit about the inspiration for this book? What was your initial spark? 
Back in the early 2000s, my father urged me to read CHANDRA: A biography of S Chandrasekhar, by Kameshwar C Wali. It left a deep impression on me. I couldn’t get past how this young man made an incredible discovery about the death of stars – essentially he figured our using just mathematic calculations that such a thing as a black hole exists – and instead of his idea being welcomed, the scientific community ridiculed, and then ignored him. And yet, he was able to move past the disappointment and go on to do great things anyway. I’ve wanted to share this story with the world for a long time now. 
Writing STEAM books requires a substantial amount of research. Often it is the most fun part of our writing process. Did you meet any challenges in your research journey? 
I have a masters degree in engineering, and I’m comfortable with most things science and math. But astrophysics? That’s an entirely different thing! So for me, the biggest challenge was not just to understand the concepts of the birth and death of stars and the theory of black holes, but to express it in simple, clear terms. 
Often one of the most difficult parts of crafting our books is not deciding what to include, but deciding what to leave out. What did you choose to leave out of this book and why? 
One of the most fascinating things about Chandra’s story is that he remained on cordial terms with Arthur Eddington, in spite of the latter’s startling betrayal. I read two biographies of Chandra’s, read transcripts of his oral history interviews, listened to some interviews, and yet, I am not even close to understanding how he could bring himself to remain friendly with Eddington. Obviously, this bit didn’t fit into the picture book in any shape or form, so it wasn’t too hard of a decision to leave it out. 
What tip can you share with teachers who want to use your book in the classroom? 
I would love it if teachers use this book to highlight the power of reading and learning widely. Chandra was able to find connections between different subjects, and apply what he learned from one source, to what he learned from another source, and come up with a completely new idea. 
Another thing this story shows is the wisdom of letting go. We talk about perseverance all the time as a valuable skill, and it is! But there is a lot to be said for learning to recognize when to let go and move on. If Chandra had gone on and on endlessly, trying to convince the scientific community which at that time just wasn’t ready to listen, imagine the frustration he would’ve experienced! Would he ever have been able to achieve all that he did if he hadn’t moved on? 
(inside spread)
Congratulations on this book release! What comes next for you? Can you give us a peek at what you are currently researching? 
I’m currently doing what I like to call “feasibility research” into three different topics – one is history+STEM, another is history+food and the third is STEM+biography. Let’s see if any of them will stick!
About the author: 
Shruthi Rao writes books for children. She is the author of 18 fiction and nonfiction books published in India and the US. She made her American publishing debut in 2024 with Kadooboo!: A Silly South Indian Folktale, which is an NYPL Best Book 2024. Shruthi has a masters degree in energy engineering and worked for a few years in tech before becoming a writer. Originally from India, Shruthi now lives in California. She loves desserts, benches and long walks. 
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