Lesson One: In this lesson, you'll learn how a monitor generates color, when it's best to choose GIF and when you're better off going with JPEG. You'll also learn about interlacing and transparency. Finally, you'll learn how to optimize the HTML <IMG> tag so that your graphics show up precisely where you want them and your web pages load as quickly as possible.

GIF vs JPEG
A Side-by-Side Comparison

Interlaced GIF 21.6 K

Noninterlaced GIF 20.3 K

JPEG only 8.7 K

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