As reported in Jake's Adventures, Jake's been reading several books. The first book he read was "Good Morning, Digger!", which is a ten-page book that does not repeat.
We were amazed at this because Erik and I have read that book to him about 500 times and neither of us have it memorized. Then, he started reading other books, such as "Emergency" and "Speedy Little Race Cars". It's amazing how he can retain information. I wonder what he'll read next!