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A **book** is a set of written, printed, illustrated, or blank sheets, made of ink, paper, parchment, or other materials, fastened together to hinge at one side. A single sheet within a book is a leaf, and each side of a leaf is a page. A set of text-filled or illustrated pages produced in electronic format is known as an electronic book, or e-book.

Books may also refer to works of literature, or a main division of such a work. In library and information science, a book is called a monograph, to distinguish it from serial periodicals such as magazines, journals or newspapers. The body of all written works including books is literature. In novels and sometimes other types of books (for example, biographies), a book may be divided into several large sections, also called books (Book 1, Book 2, Book 3, and so on). An avid reader of books is a bibliophile or colloquially, *bookworm*.

A shop where books are bought and sold is a bookshop or bookstore. Books can also be borrowed from libraries. Google has estimated that as of 2010, approximately 130,000,000 unique titles had been published. In some wealthier nations, printed books are giving way to the usage of electronic or e-books, though sales of e-books declined in the first half of 2015.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Book

In graph theory, a **book graph** (often written ) may be any of several kinds of graph.

One kind, which may be called a **quadrilateral book**, consists of *p* quadrilaterals sharing a common edge (known as the "spine" or "base" of the book). A book of this type is the Cartesian product of a star and *K*_{2} .

A second type, which might be called a **triangular book**, is the complete tripartite graph *K*_{1,1,p}. It is a graph consisting of triangles sharing a common edge. A book of this type is a split graph.
This graph has also been called a .

Given a graph , one may write for the largest book (of the kind being considered) contained within .

The term "book-graph" has been employed for other uses. Barioli used it to mean a graph composed of a number of arbitrary subgraphs having two vertices in common. (Barioli did not write for his book-graph.)

Denote the Ramsey number of two (triangular) books by

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Book_(graph_theory)

A **book** is a set or collection of written, printed, illustrated, or blank sheets, made of paper, parchment, or other material, usually fastened together to hinge at one side.

**Book** or **Books** may also refer to:

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Book_(disambiguation)

* Bedtime* was a British comedy-drama written and directed by Andy Hamilton and broadcast by the BBC. It ran for three series for a total of fifteen episodes between August 2001 and December 2003. The first two series had six episodes each and the third series had three episodes. All three series have been released on DVD.

The story centers around the bedtime conversations of couples – or in one case a father and son – living in adjoining houses on a suburban London street. An older married couple, Andrew and Alice Oldfield (played by Timothy West and Sheila Hancock), appear in all three series. Their neighbours in the first series are a young couple (Claire Skinner and Stephen Tompkinson) with a new baby, and an aspiring actress (Emma Pierson) targeted by a reporter (Meera Syal) hoping to write an exposé on her boyfriend (David Gillespie). The Oldfields are worried about their daughter in America whose husband may be abusive.

In the second series, Andrew Oldfield is annoyed by the noise made by Kurdish men from a nearby hostel. His wife writes a letter to the local paper in support of the hostel, causing her to be ostracised by her friends. Andrew also becomes worried that he may have Alzheimer's. Meanwhile, one neighbour (Kevin McNally) is given an ultimatum by his girlfriend (Doon Mackichan), while on the other side, widower Neil Henshall (Alun Armstrong) tries to find out what's troubling his son Ralph (Adam Paul Harvey). Ralph is visited by his girlfriend (Sienna Miller) and the Oldfields receive a visit from an old friend (James Bolam). A burglary at the Oldfields' house casts suspicion on various parties.

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Bedtime_(TV_series)

**Bedtime** is a popular parenting tradition.

**Bedtime** may also refer to:

This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Bedtime_(disambiguation)

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