Jessica's Guide to Dating on the Dark Side is a book by Beth Fantaskey. Intended for readers at the secondary school level, it is found in over 1100 WorldCat libraries . The book was published by Graphia Houghton Mifflin Harcourt, in 2009. In the book, Jessica, a 17-year-old adopted child, discovers that she is a descendant of vampire royalty. The books was followed by Jekel loves Hyde in 2010, and a sequel, Jessica Rules the Dark Side was published in 2012.