Jason Chun is a CNET writer covering a range of topics in tech, home, wellness, finance and streaming services. He is passionate about language and technology, and has been an avid writer/reader of ...

The GIF, short for "graphics interchange format," has become a staple in modern communication. The short, looping video clips can be easily shared, which has made GIFs popular with social media users.

This excerpt from Tom Gentile was originally published in "The Alpha 9 Trader Bible," a product of Money Map Press. If you've traded options before, you've probably heard someone mention the "Greeks." ...