This is the second in the Southern Vampire series and continues the adventures of Sookie Stackhouse, a telepathic Southern waitress, and Bill, her vampire boyfriend.
Although I really enjoyed Dead Until Dark, I thought that Living Dead in Dallas was better. It had a faster pace and more subplots to keep me interested. I recommend reading the first book, though, because you will appreciate the characters more. And speaking of characters - every character in Charlaine Harris' books is very memorable and fun to get to know. Sookie is just a scream and readers will fall in love with Bill as he struggles to balance between being a vampire and being human. I love the main characters, but I also want to know more about the supporting characters - the blond-Adonis vampire Eric, the geeky head vampire Stan, the insane maenad, and many, many more. All of Harris' characters are fun to get to know and I hope that I will see more of them in the next book.
Charlaine Harris also has some very interesting vampire ideas that make them seem more real. She adds little random touches throughout the novel that answer questions that you never really knew that you had. For example, some vampires can fly, but how do the rest of them get around? They fly Anubis air, of course. The airline will transport vampires in their coffins during the day and is heavily guarded so that they cannot be attacked. Once you have reached your destination, the discerning vampire will immediately seek out the finest in accomodations. In Dallas, The Silent Shore is a vampire-friendly hotel that even offers room service delivery of "snacks" in whatever blood type you prefer.
If you have not done yourself the favor of reading Charlaine Harris' Southern Vampire books, I recommend that you go to your nearest bookstore and buy them now (and be prepared to stay up late to finish them).