Glad to see a post about books up here. There are some great titles listed too! I confess that I work for the publisher of some of the titles listed, but I have to say they really are good books.
Nice to see DragonArt
by J. NeonDragon Peffer on this list, it's such a fun and helpful book (there is another great book by the same author as well, DragonArt Fantasy Characters
, which goes beyond dragons to elves, goblins and other creatures).
John Howe Fantasy Art Workshop
is a gorgeous book filled with insight from a well known illustrator of Tolkien's work.
If you're into really creepy stuff check out Hell Beasts
by Jim Pavelec.
If you want some more info check out the IMPACT books partner forum.