Dan Gutman has written a series of baseball card adventure books with titles suh as Mickey and Me, Babe and Me , Shoeless Joe and Me with a basic theme of the kid finding a baseball card and being transported back in time. These are very simple books but they convey a basic knowledge of baseball cards and a history of the sport and some of the famous players. Combining a love of books and the thrill of baseball card collecting could be the ideal combination. You could read these books to the kids until they are old enough to read them themselves and I would use some cheap cards depicting the players who are the subject of the book as bookmarkers so they can hold the cards as the adventure unfolds.
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