Tilly and her grandma enjoy sitting on the porch, having a few snacks, and reading some great library books. A lot of simple things happen to Tilly and her grandma in the course of an ordinary day. The book allows readers to draw their own pictures for each page of the book. Tilly is book one in this series. Imagination, crayons, markers, a few nice snacks, and a grandma or two will be welcome additions to the simple joys of a nice summer day. And of course, it's always great to have someone to draw, color, and read with.