Also, SOME stuff can be handled in post-processing... but it's always best to get it right when you take the picture, and minimize the post-processing. The biggest problem I see with digital cameras is that too many people take a picture and just upload it straight from the camera. that's almost never a good idea.
There are lots of "dummies guides" out there on photography, digital photography, and post processing, but the book that helped me the most back when I was teaching myself photography (with my Pentax K1000 totally manual SLR) was Kodak's "How to Take Great Pictures."
If you take pictures INdoors, check your camera settings. Most digital cameras have a menu setting that will compensate for the photo being taken indoors. It's usually called "white balance." As one example, it helps keep photos taken under flourescent lights from looking yellow.
A suggestion I got from the daylily forum here on ATP is to use my camera's "portrait" setting when taking pics of my flowers. It uses a shallower depth of field and helps blur the background. We had a couple photography threads going on in that forum, back in the spring.
The thread "Taking photos of daylilies" in
Daylilies forum
The thread "Photography Equipment" in
Daylilies forum
