Behold, the Tiniest of Books – The New York Times

Most of the books in the exhibit are about one to three inches high and would nestle easily in the palm of your hand. Some are the size of a thumbnail. (There are also a few ultra-micro-miniatures, with no dimension greater than a quarter of an inch; one, shockingly, looks to be about as big as the period in this sentence.) The oldest is a cuneiform tablet from about 2300 B.C.; the newest was published last year. They are valued in the tens or hundreds or thousands of dollars; the rarest of miniature antiquarian books can sell in the six or even seven figures.

From Behold, the Tiniest of Books – The New York Times