1. A booklet with removable cards as pages, comprising: a first fastener, wallet, or carrying means, that can hold a plurality of cards to act as a booklet, and that can be opened by a reader, so that a selection of one or more cards can be removed; a second fastener, wallet, or carrying means which can be used to carry the selection of one or more cards that are removed; wherein each of the plurality of cards includes information printed thereon in two or more languages for use by the reader, a card number marked on its front face that uniquely identifies that card within the plurality of cards, and two or more numbers marked on its back face that identify card numbers of other cards within the plurality of cards, wherein each of the other cards includes related information and also includes on its back face card numbers of those cards which link to that other card; and wherein the reader can select a particular card from the plurality of cards, and use the one or more numbers marked thereon to locate those other cards within the plurality of cards, to form an itinerary or other abbreviated set of related information that can be carried by the second fastener, wallet, or carrying means.
1. A booklet with removable cards as pages, comprising: a first fastener, wallet, or carrying means, that can hold a plurality of cards to act as a booklet, and that can be opened by a reader, so that a selection of one or more cards can be removed; a second fastener, wallet, or carrying means which can be used to carry the selection of one or more cards that are removed; wherein each of the plurality of cards includes information printed thereon in two or more languages for use by the reader, a card number marked on its front face that uniquely identifies that card within the plurality of cards, and two or more numbers marked on its back face that identify card numbers of other cards within the plurality of cards, wherein each of the other cards includes related information and also includes on its back face card numbers of those cards which link to that other card; and wherein the reader can select a particular card from the plurality of cards, and use the one or more numbers marked thereon to locate those other cards within the plurality of cards, to form an itinerary or other abbreviated set of related information that can be carried by the second fastener, wallet, or carrying means. 3. The booklet of claim 1 wherein at least one of the first fastener, wallet, or carrying means and the second fastener, wallet, or carrying means is a wallet.