Olympus has put a very interesting handbook online about digital photography. They call it the “FAQ on Digital Photography”, although it is more of a general info collection on digital photography technology and techniques, together with a big glossary.
It is indeed a very useful and interesting piece of PDF 🙂 A lot is explained in it, and I’m sure that even the prosumers can get a tip or two out of it.
And it’s free, so why wouldn’t you try it?
The Olympus Digital Library – Volume 5 : FAQ on Digital Photography [ olympus-europa.com ]