I've had this copy for a while. I like the portrayal of Lugosi-as-Dracula and the other cast of characters.
Carmilla by Sheridan Le Fanu
Dracula's Guest" by Bram Stoker
Le Horla by Guy de Maupassant
The Sad Story of a Vampire by Count Stenbock
Good Lady Ducayne by Mary Elizabeth Braddon
The Tomb of Sarah by F.G. Loring
For the Blood Is the Life by F. Marion Crawford
The Room in the Tower and Mrs. Amworth by E.F. Benson
The Transfer by Algernon Blackwood
The Vampire by Jan Neruda
Four Wooden Stakes by Victor Roman
An Authenticated Vampire Story by Dr. Franz Hartmann
The Dracula Book of F=Great Vampire Stories, ed. Leslie Shepherd, Jove, (c) 1977, but Jove edition March 1978. 0-515-04506-3
Shepherd is British, and known as a collector of Stoker's original works and other works on vampires. I've not tracked down anything additional.
I found this brief bio on "Rowena": Rowena Morrill, better known as Rowena, is one of the top cover illustrators in science fiction and fantasy. Her incredible body of work includes over 300 book covers. Rowena began her career in New York City where she lived for sixteen years. She presently lives in upstate New York gaining creative inspiration from the beautiful countryside. I found her web site here: http://www.rowenaart.com/