Ever walked into a grocery store for milk and walked out with a cart full of stuff you didn't plan to buy? You're not alone.

While there’s no substitute for a good eye, photographers and filmmakers do abide by certain “rules” when it comes to composing images. Among them is the rule of thirds, an invaluable tool for when ...

U.S. Navy SEALs train with an SH-60F “Seahawk” helicopter on the flight deck of USS Enterprise.. Photo: Getty Images Former Navy SEAL officer Jocko Willink says he learned a fundamental rule of ...