What is That: Sign Language Tee

Each clothing item comes with a Children’s Book and a Discovery Box.

The Clothing

A soft, elevated tee featuring a bold sign language question graphic, "What is That?" Designed for kids who are curious about how we communicate (and parents who love turning everyday moments into learning).

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The Book

Written by New York Times best-selling author Susan Verde, every book celebrates something extraordinary in our world and is created in collaboration with local organizations and community leaders.

The Box

Each box is an opportunity for discovery. Inside, kids uncover stories, activities, and surprises that inspire imagination and creativity.

About The Book

An interactive children's book, written by New York Times best-selling author Susan Verde

By exploring languages all over the world, from clicks and whistles, to sign language, to spoken language and beyond, we see that there are endless ways people can communicate with one another. How did words and languages come to be? Do we have all the answers?

This hardcover book explores the fascinating history and ongoing mysteries of language. Readers are introduced to the Rosetta Stone and other remarkable artifacts that reveal how humans have connected across time. They learn that communication is not limited to words, but also includes facial expressions, body language, clicks, whistles, and countless other forms of expression.

The book encourages children to wonder and imagine by asking questions that connect the past and present. How many languages are spoken across the globe? What were the first words ever said in space? Do animals have their own unique ways of communicating? These prompts transform reading into a journey of discovery and imagination. A world map helps readers explore which languages are spoken both in their home regions and in faraway places they might one day visit. Word games, activities, and creative prompts invite them to share what they’ve learned, draw or write about their own experiences, and even spell their names using American Sign Language.

Along the way, the book makes a clear connection between the clothing collection and the stories within its pages, showing how design and storytelling work hand in hand. It also highlights the work of Reading Is Fundamental (RIF), the nation’s largest children’s literacy nonprofit, and shows how each purchase contributes to their mission of putting books into the hands of children in under-resourced communities.

This engaging hardcover gives families a reason to sit together, read, and celebrate the wonders of language, sparking conversations that bring the mysteries of communication to life.

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Designed for Conversation

Each order includes a beautifully designed box, a themed book, and your selected clothing. All three elements are intentionally connected to create an immersive, hands-on learning experience.

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