Google returns on it are plentiful and go a good way towards explanations. Wikipedia's external links found
here are also worth noting.
As for actual literature, I've only read one; being
"Does God Play Dice? - The Mathematics of Chaos" It was better than most of the online references, and most online reviews praise it, which is why I decided to read it in the first place. Apparently there is a revised and updated version available now as well.