In library and information science, a book is called a monograph, to distinguish it from serial periodicals such as magazines, journals or newspaper. The body of all written works including books is literature. In novels and sometimes other types of books (e.g. biographies), a book may be divided into several large sections, also called books (Book 1, Book 2, Book 3, etc.). A lover of books is usually referred to as a bibliophile, or, more informally, a bookworm. A store where books are bought and sold is a bookstore or bookshop. Books can also be borrowed from libraries. In 2010, Google estimated that there were approximately 130 million unique books in the world. Etymology The word book comes from Old English "bc" which itself comes from the Germanic root "*bk-", cognate to beech. Similarly, in Slavic languages (e.g. Russian, Bulgarian and Macedonian) "" (bukva--"letter") is cognate to "beech"
its time, and so much in the spirit of the later inventions, that it deserves to be classed with them. Indeed, it deserves the front rank among them, for this system was beyond doubt the most remarkable of all. So well conceived was it that today, more than a century and a half of rapid technological progress after its invention, it remains in active use. But then it was invented by a remarkable man, a well-known writer, agriculturalist, bibliophile, architect, diplomat, gadgeteer, and statesman named Thomas Jefferson. He called it his "wheel cypher," and it seems likely that he invented it either during 1790 to 1793 or during 1797 to 1800. Turn a cylinder of white wood of about 2. Inches diameter & 6. or 8. I. long, bore through it's center a hole sufficient to receive an iron spindle or axis of Vs or 1A I. diam. divide the periphery into 26. equal parts (for the 26. letters of the alphabet) and, with a
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