Register below to join our FREE Tumbleocity Programs:

Our Tumbleocity ZOOM sessions are designed by our authors to be fact filled, interactive and fun. We hope you will be join us in one of our upcoming sessions. It’s easy… just select the session you are interested in attending and provide us with your email info. We will send you a registration confirmation right after you sign up. The day before the event we will provide you with additional log in details. You must be 18 to register or have the permission of your parent or guardian to sign up. If you have any questions please feel free to reach us via the contact page. (hotlink contact page). Be sure and check out the Tumbleocity FAQ, as your question may already be answered. Thanks! We’re looking forward to ZOOMING with you.

All of our workshops are also streamed live on our Youtube Live channel.

New 2022 Tumbleocity Events Coming Soon!

Including: ResQ in Panama by Dr. Eva Pell, Leo & the Plastic Collecting Submarine by Diego Chaves, and more!

Tales of The Universe – July 13, 5PM Eastern Time


Professor Eegerson’s Tales of the Universe tells the story of retired Professor Doc Pete, aliens and faraway places. Doc’s tales introduce the reader to the principles of engineering and physics through the author/illustrator Greg Sviatoslavsky’s Seuss-like illustration style……and the fun characters that will dance their way into your heart.

In this Zoom Greg will introduce you to a universe unlike anything you have experienced before. You’ll meet Doc Pete and learn about alien travel and dance parties unlike any that you have ever been to. Gregwill tell you about his life as a NASA engineer and the physics that are the basis of his work. Come ready to have some fun and learn a lot……maybe even learn to dance like an alien!


AGES: 8-12

DATE: July 13, 2022




Get a copy of Greg’s book – Professor Eegerson’sTales of the Universe –  HERE.

Use code tu25 and receive 25% off and free shipping.


Previous Events:

Angel of Santo Tomas — February 2, 2022, 5PM Eastern / Noon Hawaii Time


The Angel of Santo Tomas tells the story of Fe del Mundo – a woman of color who was a pediatrician, scientist, author, educator and lifelong advocate for the welfare of children, who received multiple awards for her humanitarian work and for her dedication to “the poorest of the poor.” Her life long inspiration was spurred by the death of her older sister, who had wanted to become a doctor. Fe del Mundo made a promise to fulfill her sister’s dream.

Join author Tammy Yee as she shares Fe’s story – at a time where migrant children face uncertain futures and children are suffering all over the world – something that Fe could not bear. She spoke up and did something. She kept her promise to her sister, and to children in need.

In this Zoom you will learn about the life and work of this Filipina pediatrician and how she earned the name The Angel of Santo Tomas. Tammy Yee hopes to inspire children to pursue science and medicine in the service of humanity…..and adults to search their hearts on how to do more…..just like Fe del Mundo.


AGES: 7 – 9

DATE: February 2, 2022



Get a copy of Tammy’s book – The Angel of Santo Tomas   –   HERE. Use code as25 and receive 25% off and free shipping.

Microplastics & Me — October 6, 2021, 5PM Eastern


Microplastics—the broken down byproduct of plastic items we toss out every day—are choking our oceans. But Massachusetts high school student and author Anna Du is on the case. She witnessed this problem first hand with microplastics floating up on the beaches near her home in Boston, MA. Even though a middle schooler at the time…..Anna decided to do tackle this pollution problem head on.

Join Anna as she shares her account from her book, Microplastics and Me, of how she went from worrying about the environment to designing award-winning solutions as well as laying out a framework for would be environmentalists to follow. You will learn the:

  • Science of the microplastics problem
  • Engineering and design of her ROV
  • Use of research and data as part of the solution
  • Tips and techniques for winning at science fairs
  • Roadmap of how you can become an environmental conservationist

Anna’s interest in saving the ocean from plastics pollution helped her place first in the Massachusetts Science and Engineering Fair and win the 2021 Sanofi Genzyme award; become a nationally recognized Broadcom MASTERS finalist; attend the International Science & Engineering Fair, win scholarships and travel the world; be featured on WGBH, Disney Huffington Post, FOX 25 News, Fast Company and Smithsonian Magazine.  And, she has a 10 episode TV series, in its second airing, that you’ll hear all about during her Tumbleocity.

Her goal is to spread the word not only about the dangers of microplastics in our environment, but also about the ways to mitigate this problem. She is looking for young people everywhere to join her in helping solve world problems that will face their generation as they get older, and to prevent further damage to the climate and the environment to help preserve Earth for generations to come. Want to join her in this good fight?


AGES: 9 -12

DATE: October 6, 2021


REGISTER: by 10/4: HERE.


Microplastics and Me – get your copy: HERE


Sharks At Your Service — August 5, 2021, 5PM EDT


Sharks are at the very top of the list of animals that fascinate children and adults alike, but they are usually depicted as ferocious and destructive hunters. These negative portrayals miss the point that these top predators play an essential role in maintaining the health of the world’s oceans. Sharks at Your Service highlights the positive side of sharks—as the ultimate service providers in the sea!

Join author Mary Cerullo as she explores many of the different kinds of sharks and rays and the roles that they perform in the sea — some of which even resemble jobs that humans do on land. She will use exciting video, whimsical illustrations, and dramatic photographs by the award-winning underwater photographer Jeff Rotman. Mary hopes you will see some of the things we have in common with these sea giants, and maybe it will make you want to work to protect sharks from their top predators: us!

Mary Cerullo teaches and writes about the ocean. She has written 23 books on ocean life for children, including City Fish, Country Fish (a School Library Journal Best Book of the Year), Octopus: Phantom of the Sea (a Junior Library Guild Selection), Giant Squid: Searching for a Sea Monster (an Outstanding Science Trade Book selection by the NSTA and the CBC), and The Truth About Great White Sharks (IRA Teacher’s Choice Award).


Audience:  for ages 7+

Date:  August 5, 2021

Time:  5:00 pm to 5:45 pm EDT

Register: by August 3rd HERE.


Sharks At Your Service  – get your copy HERE.  Use code “ss25” and receive 25% off and free shipping. Orders will ship after 8/5/21


To see our previous Tumbleocity workshops, visit our Youtube Channel, and see past live streams for Tumbleocity: