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Card (also: card, sheet) - part of a book, newspaper, magazine, notebook or notebook. Most often it is white and rectangular. It can be made of paper, parchment, vellum or papyrus.

If it is clean or unprinted, it is usually used for writing, drawing or printing.

Used in many areas of industry, commerce, bureaucracy, social and everyday life of people, such as printing books, magazines and leaflets, conducting correspondence and making business and private records.

The card (especially the page) can be a unit of measure (eg this chapter has / contains 20 sheets / pages of typescript). However, you have to distinguish between pages and pages (cards usually have two pages, see the model of the Möbius ribbon ).