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.

Standard and Primary covers are widely available through general retailers. They often have higher print runs and can be cheaper, especially during sales.

In contrast, Direct Market (DM) and variant covers are primarily sold in comic shops. DM editions tend to have more limited availability and may be more valuable to collectors.

The main differences lie in artwork style, availability, price, and collector appeal. Ultimately, the choice between standard and variant covers depends on personal preference, budget, and individual collecting goals.

Comic book enthusiasts have various formats to choose from when collecting their favorite stories.
Here's a brief overview of the main types:

Omnibus

• Large, hardcover collections
• Usually contain complete runs or extensive story arcs
• Typically 800-1000+ pages
• Higher price point, often €100-€150

Oversized Hardcover (OHC)

• Similar dimensions to omnibus, but thinner
• Collect shorter runs or story arcs
• Usually 300-600 pages
• Priced between €30-€50

Hardcover (HC)

• Standard-sized hardcover books
• Collect 6-12 issues typically
• Similar dimensions to single issues, but with a hard cover
• Priced around €25-€35

Trade Paperback (TP)

• Softcover collections
• Standard comic book size
• Usually collect 4-6 issues
• Most affordable option, typically €15-€25

Other Formats

• Absolute Editions: Oversized, deluxe hardcovers (mainly DC Comics)
• Compendiums: Massive paperback collections
• Graphic Novels (OGN/GN): Original stories not previously released as single issues

The choice between these formats often depends on personal preference, budget, and collecting goals. Omnibus and OHC editions offer larger artwork and more content but at a higher price, while TPs provide a more affordable way to collect complete story arcs