Who wrote this?

"I can remember picking up my father's books before I could read. The words were mostly foreign, but I still remember the exact moment I understood, with a sudden clarity, the purpose of a paragraph. I didn't have the vocabulary to say "paragraph," but I realized that a paragraph was a fence that held words. The words inside a paragraph worked together for a common purpose. They had some specific reason for being inside the same fence. This knowledge delighted me$.$ I began to think of everything in terms of paragraphs."