Anne McCaffery has written a whole series called The Draghi of Pern, it was the first fantasy book i read and fell in Amore with Draghi from these books, best libri ever.
Dragonology da Ernest drake (I think) is very good, but it is più like an encyklopedia, in the sense that it describes different types and so on. However it is very entertaining and has beautiful illustrations. Temeraire series is also very good, it is set in the time of Napolean wars and Draghi exist, so Britain has Royal Air Force of dragons. It is very nicely written, funny at some parts, the universe is well thought out. The series has six libri in total I think.