I watched the first two seasons of Dexter and really liked them. Darkly Dreaming Dexter, by Jeff Lindsay, is the first novel. It covers the main storyline of the Ice Truck Killer that season 1 of the show covered but the show, i think, is better. Really. The book is focused only on Dexter, which is what the show does too. But the show had much more time to explore Dexter's relationships with other people: his sister Deb, his girlfriend Rita and her kids, his colleagues and other cops. Rita has two scenes in the book and her kids only one. Deb is only involved as a cop, there's very little personal interaction between them. Most of the book is in Dexter's own head as he deals with his envy and wonder of the Ice Truck Killer. It's not bad; i give it a 4 while the show's first season was really a 7.
also, does it count as buying a book if it's a present for my almost-nephew? i mean, he's just 2 1/2 and needs presents!