knowing how obsessive i can get (see aj? it's not just food!) with reading, i made it a point to set my timer every night to a maximum of thirty minutes (with an extra snooze or two) before settling down to read the book.
if you're looking for a great read, this one's highly recommended. young adults category but this one packs a lot of intelligent stuff mixed in with factoids that will keep you writing up notes and notes of people, places and events to search in google. interested? go search nicholas flamel in wikipedia :)