It's National Pet Month

The Animal's Companion

People & Their Pets, a 26,000-Year Love Story

Learn More

150 years ago, chemistry got a common global language when Dmitry Mendeleev discovered the Periodic System.

The International YEAR OF THE PERIODIC TABLE

Theodore Gray's Photo-Filled Books are Perfect for Learning About all The Elements

Celebrate the 75th Anniversary of Edith Hamilton's Classic

Mythology

The classic text, now illustrated throughout.

It All Adds Up.

MATH WITH BAD DRAWINGS

Ben Orlin: good at math. bad at drawings. A+ at making concepts accessible and fun!

Unpublished Black History from the New York Times Photo Archives

UNSEEN

A landmark collection of images and essays