You could also try Dragonology - it's not a novel, but has lots of
great dragon information, fantastic pictures and so on.
Details on Amazon :
http://www.amazon.com/exec/obidos/tg/detail/-/0763623296/qid=1101777231/
sr=8-1/ref=pd_csp_1/104-1075044-4696740?v=glance&s=books&n=507846
If the link doesn't work, just search for 'Dragonology' The full title
is actually "Dr. Ernest Drake's Dragonology: The Complete Book of
Dragons"