Deutsch: Buch / Español: Libro / Português: Livro / Français: Livre (document) / Italiano: Libro
A book is a set of written, printed, illustrated, or blank sheets, made of ink, paper, parchment, or other materials, usually fastened together to hinge at one side. A single sheet within a book is called a leaf, and each side of a leaf is called a page. A set of text-filled or illustrated pages produced in electronic format is known as an electronic book, or e-book.
In an industrial or manufacturing context, "book" typically refers to a record or a set of records that are used to track or document various aspects of an industrial process or operation. It can also refer to the physical records or documents, such as paper or digital books.