It's easy to pick up a camera - even a fancy DSLR - put it on auto, and start shooting...
But what if you want to start taking better photos? Maybe you are even vaguely familiar with ISO, shutter speed, and aperture, but don't know exactly how to manipulate them to get your desired photo affect. This is a great soup to nuts guide that covers the three and shows some great examples of what happens when you play with these elements.
Photography can be intimidating until you break it down and understand what those numbers really mean and how to make little adjustments that can have huge impact on your travel/sports photography.
Take a look at this slideshow and let e know what YOU struggle with!