I actually read this 4 years ago and am re-reading it now because it's just so cool. Here's what I wrote about it back then:
French graphic artist Joann Sfar is best known stateside for his Little Vampire books (Little Vampire Goes to School and Little Vampire Does Kung Fu!) which are aimed at children but find a wider audience. But this book is for adults and concerns Ferdinand, a vampire with women troubles. He's been sulking over a break-up with his girlfriend Lani (a mandragora, a.k.a. a plant-girl) who he caught sleeping with his best friend. Sfar's artwork is squiggly and intricate, but sometimes simple. The plots meander but are diverting and filled with strange characters like tree men, a werewolf, an invisible man, a golem, et cetera. It's often funny and always inventive. I really enjoyed these four interrelated tales. Sfar has a huge following in Europe and is the author of many comic books. I'm sure I'll be getting into some more of his work.