One of the more complicated aspects of buying stock photos can be the sheer number of them out there. Stock photography companies and websites attempt to make search engines easy and efficient, but stock photo buyers may still find it time consuming to locate just the right shot of a marriage proposal or kids having a snowball fight. And, key words searches may not always make that easier or faster. Some companies offer stock images found through a visual search. That means buyers can click not on words, but image categories. The claim is that stock images are more easily found this way.