Abstract: A fanfold booklet containing pages that are permanently marked on one or both sides with mono- or polychromatic indicia and can be temporarily and repeatedly marked. This booklet can be used for example during the course of a game of bingo to provide the proprietor of a bingo hall with reusable bingo cards that can be tracked in order to verify the legitimacy of a patron's use of such a card.

Abstract: A bingo system for managing bingo games includes a central computer and a printer which is usually located on site at the game location. The computer stores a series of bingo cards in memory and is arranged to printout the bingo cards on pages or in books for playing by the players. The computer can be programmed in dependence upon the requirements of the bingo hall management to customize the pages and books to particular games and game formats. Each bingo page or bingo book printed carries a bar code which is associated in the memory of the computer with all of the bingo cards in the page or book sold. The location is supplied with a plurality of portable bar code readers which are used by the cashier and floor runners to read the bar codes of papers and books to be purchased. The central computer communicates price information to the readers and can decline a paper or book if it contains duplicates of bingo cards already sold for that game.