Reado is a Bingo variant where the entries are Dewey Decimal classifications. The caller gives a letter (R, E, A, D, or O) and the title of a work, for example "R -- The Complete Plays of Shakespeare." Any player who has the appropriate Dewey Decimal number for that work (in this case 800) in their R column marks it on their Reado board. A player wins when she gets 5 in a row horizontally, vertically, or diagonally.

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