Tahoe Mom asked recently, "What book first inspired you to read?" For her it was Mary Poppins. For me, I don't remember. What I do remember is this:
We had moved away from my home town and out to the desert, where we spent three years on account of my dad's job. It was summer, so no school. I had just gotten my first library card. I was tearing through the "thin" books - the Dr. Seuss-length ones. My mother was getting tired of taking me to the library all the time, so she pointed me to the older kid's part of the children's section, with the novel-length books.
That was the turning point. I never looked back.
I remember The Wind in the Willows (the Kenneth Grahame original, not the Disney version) though I'm sure that was not was the first. Then there were the Eleanor Cameron "Mushroom Planet" books, which were among the first, I think.
When we moved back to our home town when I was in the fourth grade, I very quickly got my library card there, and the library became one of my favorite places, especially in the summer. I remember discovering Madeleine L'Engle's A Wrinkle in Time, which I checked out and read multiple times. I discovered her other children's books and enjoyed those as well.
I got off to a great start with books, and have been reading ever since.