Dave, THIS SITE is excellent, amount the best and you do not have to invest in a book :)
Also, because you are a Nikon user THIS SITE will give you very good links.
Now, the money for the books can be used towards a good tripod and head ;)
Cheers
Printable View
been on the cic site since just after i ordered the camera.. is a very site.
the other i hadnt seen yet and has been book marked, thank you.
There are some books that I can recommend for thos interested in nature photography.
One which I have and is very good is
Photoshop for Nature Photographers - A Workshop in a Book by Ellen Anon & Tim Grey
John Shaw's Nature Photography Field Guide [Paperback]
For close up photography
Digital Photography Expert – Close-up Photography by Michael Freeman
John Shaw's Closeups in Nature (Practical Photography Books)
I have both book by John Shaw, he is among the top nature photographers and are very good books.
Cheers