"I Can Read It"

I picked up a Sophia the First book for Peyton at the grocery store a couple of weeks ago (a great way to keep her occupied at the store!) and we've been reading it non stop ever since.  Now when we sit down to read it she says, "I can read it" and requests that I hand it over to her. She does remarkably well "reading".  She has almost the entire thing memorized - some pages word for word and turns the page at the appropriate time.  I can't get over hearing her "read".  I often find myself giggling as she says some of the bigger words - it amazes me every time!