when i first read em i started from book 2 since i had already seen season 1. i was a little lost on a lot of things but not too badly. im on my 3rd re-read now and i still be catching shyt.
also read the duncan and egg series. its like a prequel set 75 years earlier when targaryens still ran shyt.
one more piece of advice, when u get to book 4, go to this website
and combine books 4 and 5. the whole book 4 and the first half of book 5 run at the same time. im reading it like that this time around and its SO much better.
enjoy breh. very very good complex story.