One of my favorite series! It's pretty much about vampires, witches, werewolves, fey, & demons. The series portrays vampires as the more superior race than the werewolves because the werewolves have been losing their powers for a long time (you'll find out why in Salvatore's book).
The vampires have their own king, called the Anasso, and their new king is Styx. He's definitely a scary vampire due to his size and power. Salvatore is the king of the weres, and the humans that were bitten by weres are referred to as curs. The main conflict in the series is the return of the Dark Lord.
I love the series because the characters are funny and they're complex. The lead female characters are not annoying and they don't complain a lot. The lead male characters are believable, funny, and powerful.
My favorite characters are Salvatore, Harley, Viper, Jaelyn, Cezar, Jagr, Tane, and Cassandra. I love all the books in the series, but the most recent one (Caine & Cassandra's) was not as great.
I definitely recommend this series. It's definitely one of the best ones out there. The next book doesn't release until June 2013.
