Cover Page by David Geary

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

O'Reilly logo

Chapter 1. Essentials

In 1939, Metro-Goldwyn-Mayer Studios released a film that, according to the American Library of Congress, was destined to become the most watched film in history. The Wizard of Oz is the story of a young girl named Dorothy and her dog Toto, who are transported by a violent tornado from Kansas in the central United States to the magical land of Oz.

The film begins in Kansas and is shot in a bland and dreary black-and-white. When Dorothy and Toto arrive in the land of Oz however, the film bursts into vibrant color, and the adventure begins.

For more than a decade, software developers have been implementing bland and dreary web applications that do little more than present bored-to-death users with a seemingly unending sequence ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required