Ok so movie and book are really really different. It's hard to compare them but I love Hiccup and his sarcasm in this book (Toothless is way cuter in the movie though). And yes I'm going to read the whole series, obviously.

How to Train Your Dragon FILM TIE IN (3RD EDITION): Book 1von Cressida CowellHachette Children's Books / Hodder Children's Books