There is a thread on here somewhere (search "free router book") for a free download of Taunton's Complete Guide to Routers. Lots of good fundamental info. I downloaded the free version and have flipped around it enough to be willing to buy a paper copy. All i need to do is remeber to do that.
Yesterday i got my copy of Bill Hylton's "Router Magic"--WOW!! I've spent about 30 minutes with it, and the jigs/plans/tips are incredible and spelled out simply enough for me to understand. Much i won't ever get to--but very much that i will use for sure. I got mine on e-bay, only a few there and fewer at Amazon.
The other guys have covered bits, and way better than I could.
For books, if you want to own one, I'd say hit your local library, see what they have, see which ones you like, then go thru them. If you find some you want to buy, I'd hit a good used bookstore or three, 'cause new books are expensive. Or, Amazon usually has used copies of almost all the books they list - I seldom, very seldom, buy any new book anymore, unless it's one of the new Terry Pratchett books.
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