1. Derived from books and not from practical experience
2. Shown by books of account

ETYM Old Eng. book, bok, AS. bôc; akin to Goth. bôka a letter, in pl. book, writing, Icel. bôk, Swed. bok, Dan. bog, OS. bôk, Dutch boek, Old High Germ. puoh, German buch.
1. A copy of a written work or composition that has been published (printed on pages bound together).
2. A book as a physical object: a number of pages bound together; SYN. volume.
3. A major division of a long written composition.
4. A number sheets (ticket or stamps etc.) bound together on one edge.
Portable written record. Substances used to make early books included leaves, bark, linen, silk, clay, leather, and papyrus. In about AD 100–150, the codex or paged book, as opposed to the roll or scroll, began to be adopted. Vellum (parchment of calfskin, lambskin, or kidskin) was generally used for book pages by the beginning of the 4th century, and its use lasted until the 15th. It was superseded by paper, which came to Europe from China. Books became widely available only after the invention of the printing press in the 15th century (see also publishing. Printed text is also reproduced and stored in microform.

1. To engage for a performance.
2. To record a charge in a police register.
3. To register in a hotel booker.