Definitely a fun idea and there have been comics similar to this one which is the earlier idea of Grahame-Smith before his take on Sense and Sensibility. It tells the true story of the 16th president and how vampires and his secret battles with them shaped his life and actions. Minor problems exist such as the opening is typical contemporary fiction: author presents writer who can't write and is writing this tale, and then doesn't follow through with this thought. He doesn't really flesh out the idea of vampires and what they can do or how they shaped history. I also always have problems with fictionalized history as, even though this is in good humor, it tends to undermine the suffering, success, and real lives of the people involved. We're not talking revisionist history like Fox TV or Iran's propaganda, but still.