This collection of short stories is branded as part of the World of Darkness (or by time it should be known as the Classic World of Darkness). However, fans of Vampire: the Masquerade and The World of Darkness should be aware; if you are looking for materials centered wholly on that game setting, you'll be disappointed by more than half of the stories, as several of them are just good vampire stories, often based more along Bram Stoker's world than V:TM.
The stories themselves go through a progression of ancient tales and slowly rise to a contemporary setting. Many involved historical figures becoming involved with vampires in one fashion or another.
My personal favorite is The Devil's March, which is written as a sort of prequel to Dracula, wherein the Count has an agent in the Confederate states looking to promote that region as the place for the old vampire to relocate...if only he will first support the Confederate army with wealth and resources (and a secret force of vampire assassins). Again, this one has nothing to do with Vampire: the Masquerade, but it is a great story written in the same style as Bram Stoker's original.
In fact, in my opinion, the book's stories become less entertaining the closer they get to modern times.