I've read all 3 books in the Dexter series and love them all. I enjoy the Showtime series, but the books really are better. The books are definitely not for the faint hearted, and have mahem enough for those of us who like our fiction on the gory and gruesome side. The darkly humorous narration throughout the books make them a joy to read.
Dexter is one serial killer who has me rooting for him instead of the police. I hope Mr Lindsay writes many more in the series.