We gave Kate her very own sketch book a few months ago and she loves it. Michael also has several sketch books and she really enjoys getting to draw with him. We encourage her to use one page at a time and then put the date at the bottom. She usually ends up using it once a week or so and I think it will end up showing her progression quite nicely. Plus, it makes me feel a bit less guilty about throwing away the approximately 3000 other pieces of art she creates a week. 🙂