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 Types are cast in various fonts but within these extremely varied forms the letters are also cast in different formats. From c. 1800 the sizes of the types were indicated in points and ciceros: a cicero (c. 4.5 mm.) contains 12 points. The height of a body of type (a series of letters of a certain type and a certain size) is measured from the highest point of an ascender (h, k, etc.) to the lowest point of a descender (p, q, etc.). The slide shows the `a' of the Bembo typeface in ascending size from 6 points (very small, for footnotes, etc.) to 36 points (for a large title page).