A letterform, letter-form or letter form is a term used especially in typography, palaeography, calligraphy and epigraphy to mean a letter's shape. A letterform is a type of glyph, which is a specific, concrete way of writing an abstract character or grapheme.
For example, medieval scholars may discuss the particular handwritten letterforms that distinguish one script from another.
In typography, kerning is the process of adjusting the space between two specific characters, or letterforms, in a font. It is not to be confused with tracking, by which spacing is adjusted uniformly over a range of characters.
In a well-kerned font, the two-dimensional blank spaces between each pair of characters all have a visually similar area. The term "keming" is sometimes used informally to refer to poor kerning (the letters r and n placed too closely together being easily mistaken for the letter m).
Type design is the art and process of designing typefaces. This involves drawing each letterform using a consistent style. The basic concepts and design variables are described below.
A typeface differs from other modes of graphic production such as handwriting and drawing in that it is a fixed set of alphanumeric characters with specific characteristics to be used repetitively. Historically, these were physical elements, called sorts, placed in a wooden frame; modern typefaces are stored and used electronically. It is the art of a type designer to develop a pleasing and functional typeface. In contrast, it is the task of the typographer (or typesetter) to lay out a page using a typeface that is appropriate to the work to be printed or displayed.
The long s, ⟨ſ⟩, also known as the medial s or initial s, is an archaic form of the lowercase letter ⟨s⟩, found mostly in works from the late 8th to early 19th centuries. It replaced one or both of the letter s in a double-s sequence (e.g., "ſinfulneſs" for "sinfulness" and "poſſeſs" or "poſseſs" for "possess", but never "poſſeſſ"). The modern ⟨s⟩ letterform is known as the "short", "terminal", or "round" s. In typography, the long s is known as a type of swash letter, commonly referred to as a "swash s". The long s is the basis of the first half of the grapheme of the German alphabet ligature letter ⟨ß⟩, (eszett or scharfes s, 'sharp s'). As with other letters, the long s may have a variant appearance depending on typeface: ſ, ſ, ſ, ſ.