Which of the Light Novels does the Anime of Accel World Cover looking at the Light Novels List on Wikipedia i assume that Novels 1 and 3 are used but i am wondering if that's it or any of the others are used
Actually, Accel World the anime 1st season covers Volume 1-4 + two short histories from Volume 10. (possible spoilers at the end)


   Volume 1: episodes from 1 through 5
 Volume 10 1st Short history: episode 6 and 7
 Volume 2: episodes from 8 through 12
 Volume 3: episodes from 13 through 17
 Volume 10 2nd Short history: episode 18 and 19
 Volume 4: episodes from 20 through 24


Is important to notice that the two OVA's are not part of the main Light Novel series.