I've tried meditation a few times, and finally found something that seems to work with my brain (I can explain but it doesn't answer your question). In the meantime, I tried reading a good deal and learning what I could, so here are the things that stand out for me.
Lots of folks enjoy "Mindfulness in Plain English", and it does a good job of explaining some things, and it got recommended to me over and over again.
For something more in-depth, check out "meditation for dummies". It is a decent introduction to meditation.
For a more realistic viewpoint on meditation, check out Sam Harris. He was pretty skeptical, and seems to not over-inflate the results though he's an obvious believer.
Lastly, I recommend watching Shinzen Young on Youtube. He was really more of a turning point for me, and gives a good deal of flexibility in methods.