In the unrestricted sense, a book is the compositional whole of which such sections, whether called books or chapters or parts, are parts.
The intellectual content in a physical book need not be a composition, nor even be called a book.
A codex (in modern usage) is the first information repository that modern people would recognize as a "book": leaves of uniform size bound in some manner along one edge, and typically held between two covers made of some more robust material.
The first written mention of the codex as a form of book is from Martial, in his Apophoreta at the end of the first century, where he praises its compactness.
Wax tablets were pieces of wood covered in a thick enough coating of wax to record the impressions of a stylus.
They were the normal writing material in schools, in accounting, and for taking notes.Although in ordinary academic parlance a monograph is understood to be a specialist academic work, rather than a reference work on a single scholarly subject, in library and information science monograph denotes more broadly any non-serial publication complete in one volume (book) or a finite number of volumes (even a novel like Proust's seven-volume In Search of Lost Time), in contrast to serial publications like a magazine, journal, or newspaper.An avid reader or collector of books or a book lover is a bibliophile or colloquially, "bookworm". Google has estimated that as of 2010, approximately 130,000,000 distinct titles had been published.Books can consist only of drawings, engravings, or photographs, or such things as crossword puzzles or cut-out dolls.In a physical book, the pages can be left blank or can feature an abstract set of lines as support for on-going entries, i.e., an account book, an appointment book, a log book, an autograph book, a notebook, a diary or day book, or a sketchbook.A shop where books are bought and sold is a bookshop or bookstore. It is thus conjectured that the earliest Indo-European writings may have been carved on beech wood.Sumerian clay tablet, currently housed in the Oriental Institute at the University of Chicago, inscribed with the text of the poem Inanna and Ebih by the priestess Enheduanna, the first author whose name is known A tablet is a physically robust writing medium, suitable for casual transport and writing.In the history of hand-held physical supports for extended written compositions or records, the codex replaces its immediate predecessor, the scroll.A single sheet in a codex is a leaf, and each side of a leaf is a page.Tomus was used by the Latins with exactly the same meaning as volumen (see also below the explanation by Isidore of Seville).Whether made from papyrus, parchment, or paper, scrolls were the dominant form of book in the Hellenistic, Roman, Chinese, Hebrew, and Macedonian cultures.