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A height-adjustable desk or sit-stand desk can be adjusted to both sitting and standing positions; this is purported to be healthier than the sit-only desk. Sit-stand desks may be effective at reducing sitting time during the work day between 30 minutes and two hours per working day but the evidence is low quality. [6]
Gerald Ford and Jimmy Carter stand behind lecterns during a debate prior to the 1976 United States presidential election. A lectern is a standing reading desk with a slanted top, on which documents or books are placed as support for reading aloud, as in a scripture reading, lecture, or sermon. A lectern is usually attached to a stand or affixed ...
Bookcases range from small, low models the height of a table to high models reaching up to ceiling height. Shelves may be fixed or adjustable to different positions in the case. In rooms entirely devoted to the storage of books, such as libraries, they may be permanently fixed to the walls and/or floor. [1]
A shelf or case designed to hold books is a bookshelf. The length of the shelf is based upon the space limitations of its siting and the amount of weight which it will be expected to hold. The vertical distance between the shelves is based upon the space limitations of the unit's siting and the height of the objects; adjustable shelving systems ...
The size of a book is generally measured by the height against the width of a leaf, or sometimes the height and width of its cover. [2] A series of terms is commonly used by libraries and publishers for the general sizes of modern books, ranging from folio (the largest), to quarto (smaller) and octavo (still smaller).
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