At 6, my son had already read the first two Harry Potter books. He wanted to start on the third but we thought it was too scary.
After we moved to Northern Virginia, he found a friend at his new school who'd read the third and fourth books in the series and he convinced us he could try them without having nightmares. So now he's finished all the books and re-read each (and/or listened to the audiobook) more times than I can count.
I grew up in Jamaica at a time when there were one or two radio stations, but no television stations to discourage reading. I've tried to interest my son in the books I loved then. He dipped into the William books by RIchmal Crompton, but balked at E. Nesbit and Edward Eager because, I suppose, they just weren't exciting enough.
So the other day, when we went to the library (we go at least once a week), I got him books by Neil Gaiman and Daniel Pinkwater. He devoured both immediately. And this morning, when I told him there was more by Daniel Pinkwater--a lot more!--his eyes widened and he grinned with the anticipation of spending more time with that master storyteller.
He's a little too young, but in a few years I'm going to have to introduce him to Howard Waldrop. My boy loves Greek mythology. I think he's going to like Waldrop's "A Dozen Tough Jobs."