Content from the popular website HowStuffWorks was featured on five illustrated sets of cards, available April 11 to May 7, 2005.

  • Vehicle Tech
  • Forces of Nature
  • Human Body
  • Around the House
  • Fun and Games

According to the press release:

Answering questions such as "What happens to food once it hits the stomach?" or "How does a 4.5 million-pound space shuttle fly?" the age-specific card sets were developed to explain the uniqueness of how things work while demonstrating how science and technology can be cool.

The brand was licensed from The Convex Group. Along with the website, it published HowStuffWorks Express, a kids magazine.

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