Who Discovered How to Breathe Underwater?: Jacques Cousteau

Explore how French naval officer Jacques Cousteau forever changed the way people experience life underwater in this STEM-driven graphic novel by GLAAD Media Award–winning author Ned Wolfe and illustrator Caroline Hu.

An NSTA-CBC 2026 Best STEM Book!

Presenting Who HQ Graphic Novels: an exciting addition to the #1 New York Times bestselling Who Was? series!

Dive into the sea with Jacques Cousteau as he works to develop the Aqua-Lung—the first modern scuba device—which allowed for safer, longer, and deeper diving. A story of friendship, experimentation, and innovation, this graphic novel immerses readers in Jacques’s journey of combining his passions for tinkering, filmmaking, and the sea. This accessible narrative makes a splash with bright, full-color illustrations that will transport readers below the water's surface.Ned Wolfe (he/him) is a GLAAD Media Award–winning queer cartoonist who writes about heroes, health, and history. He lives in Cambridge, Massachusetts. Ned can usually be found in a library or in the water. This is his first book for kids. Visit him online at www.nedwolfe.com.

Caroline Hu (she/her) is a cartoonist and science communicator. She is a biology professor at the Massachusetts College of Art and Design, where she brings art and science together in the classroom. This is her first graphic novel. Visit her online at www.hudrewthis.com.