If we get the right book for our DS he will do nothing else and reads all the series, fast, otherwise rejects all books, fact, fiction, thought, completely. he's dyslexic and his intellect is higher than his reading skills, which leads to a lot of frustration. we only realised this late on - we knew there was a problem but primary failed to identify it and told us he was idle/stupid. and i stupidly pushed him too much, leaving him not enjoying reading with hang ups about it. he'll do it if we read to him, or if we take turns. he did enjoy things with humour or a little bit of fact - in his case football stats etc, jeremy strong, captain underpants and he loved getting a football mag a week which he has only just swapped now, about 4 years later, for a newspaper. he'd listen to audios - horrid henry etc. he liked the laura ingalls wilders books - graphic adventures of pioneering, the just so stories.
he makes me read all his books, usually a chapter behind.
so what I'm saying, i suppose, is that if it's fun to do together, he'll prob enjoy it and may take you to get the sort of books he likes from the library, if not, he could be put off. but do check out whehter he has myers irlen or something like that, or whether like many at that and later ages, is just not bothered. our ed psych told us to chill: he watches drama on the tv and enjoys stories, he reads football stuff, he thinks and has a reasonable if inaccurate vocabulary.