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!

A NCSS-CBC 2026 Notable Social Studies Trade Book for Young People!

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.