Credit goes to CreativeBloq for the tutorial.
A visual guide to some common typography terms - see key below
Key to image: 1. Bowl; 2. Stem; 3. Counter; 4. Arm; 5. Ligature; 6. Terminal; 7. Spine; 8. Ascender; 9. Apex; 10. Serif; 11. Ear; 12. Descender; 13. Crossbar; 14. Finial; 15. Ascender height; 16. Cap height; 17. X-height; 18. Baseline; 19. Descender line
Aesc (phonetic: ash)A ligature of two letters – 'a' and 'e'. The aesc derives from Old English, where it represented a diphthong vowel, and has successfully migrated to other alphabets including Danish and Icelandic.
ApertureThe constricted opening of a glyph, as seen in the letter 'e'. Varying the size of the aperture has a direct effect on the legibility of a letterform and, ultimately, readability.
ApexThe point at the top of a character where the left and right strokes meet. The example shown here is the top point of an uppercase a.
ArmA horizontal stroke that does not connect to a stroke or stem at one or both ends – such as the top of the capital T.
AscenderThe part of a lower case letterform that projects above the x-height of the font. Ascenders are important for ease of prolonged reading, though the combination of too much asc
ender-height and not enough x-height can cause problems.The ascender projects above the x-height of the font
BaselineThe baseline is where the feet of your capital letters sit. Below this line are descenders and loops.
BowlThe shapely, enclosed parts of letters such as 'p' and 'b'.
BeakThe beak-shaped terminal at the top of letters such as 'a', 'c', 'f' and 'r'.
Bicameral (as opposed to Unicameral)Bicameral refers to alphabets that have upper and lower case letterforms, such as Roman and Cyrillic – as opposed to the likes of Hebrew and Arabic.
BracketA wedge-like shape that joins a serif to the stem of a font in some typefaces.
Cap heightThe height of a capital letter above the baseline.
CopyfittingThe job of adjusting point size and letter spacing in a bid to make text occupy its allotted space in a harmonious fashion.
CounterThe enclosed – or partially enclosed – portion of letterforms such as 'c', the lower part of 'e' and 'g'; easy to get mixed up with the bowl.
CrossbarThe crossbar connects two strokes, as in 'H'. Not to be confused with the crossstroke that cuts through the stem of letterforms such as 't'.
CursiveThese are typefaces that imitate handwriting. Ever popular with Joe Public, the design community is often less than thrilled by these sometimes flowery fonts.
DescenderThe part of the letterform that falls below the baseline. In lowercase terms, this means 'p', 'y' and 'q', and sometimes applies to uppercase 'J' and 'Q'.
DiacriticalIs it so critical that you might die? No. Diacriticals refer to accents applied to letterforms by languages including French, Czech and German in a bid to enhance the function of the glyph.
DingbatOnce known as printer's flowers, dingbats are decorative elements that can vary from simple bullets to delicate fauna and flora often formed into themed collections.Dingbat are decorative elements such as bullets
Display fontsAny typeface intended to be used in short bursts can be defined as a display font. They're often created just for use at large point sizes, as with headlines and titles.
Drop capAn oversized capital letter often used at the start of a paragraph that 'drops' into two or more lines of text, but can also climb upwards.
EarA small stroke extending from the upper-right side of the bowl of lowercase g, as shown in the example. It can also appear in a lowercase r.
EthelA ligature of the letters 'o' and 'e'.
EmOften referred to as 'Mutton' to distinguish it from the very similar-sounding En, Em is a horizontal space equal to the current point size of text.
En'Nut' to its friends, the En is a horizontal measure one half the size of an Em. That being the case, 'lamb' might have been more appropriate.
EyeThe eye is similar to a counter, but instead refers specifically to the enclosed part of the letter 'e'.
FinialA tapered or curved end, which appears on letters such as e and c.
FleuronA subcategory of, or the precursor to, the dingbat. Fleurons are floral marks dreamed up by printers of the past to help decorate text.
The HTML5 tag that brings typography to the internet with typefaces directly embedded in web pages.
GlyphAny singular mark that makes part of a font, whether a letter, number, punctuation mark or even a dingbat. Glyphs are the building blocks of typography.Glyphs are the singular parts that make up a font
GraphemeVery similar to glyph, but possibly a bit broader. A grapheme is a fundamental unit of language, such as a Chinese pictogram, an exclamation mark or a letterform. Still with us in our guide to what is typography? Great! Because we've got more terms coming your way!
GutterThe spaces between facing pages of, and very often columns of text.
JustifiedIn a paragraph of justified text, the contents are arranged so that there is no white space at the end of a line: each begins flush left and finishes flush right.
KerningThe art of adjusting the proximity of adjacent letters to optimise their visual appeal and readability.
LeadingLeading describes the vertical space between each line of type. In olden times actual strips of lead were used to separate lines of text vertically; the naming convention persists.Leading describes the vertical space between each line of type
LegibilityThe ease with which one letterform can be distinguished from the next. It feeds into but is not the same as readability.
LoopThe lower part of the letter 'g' is known as its loop or lobe. Sometimes called the tail – a term that also takes in the lower portion of letter 'y'.The lower part of the letters 'g' and 'y' are known as the loop or lobe
LogotypeThe lettered part of any marque or identity. The logotype can be taken separately from its graphic companion.
LigatureThe conjoined but non-identical twins of the typographic universe. Ligatures pull two forms together to produce a new glyph.
ManiculeAlso known as the bishop's fist (stop sniggering at the back), the pointing hand symbol is a popular dingbat.
MonospaceFonts in which every letterform occupies the same horizontal space.
OpenTypeDesigned by Microsoft and Adobe, OpenType supplanted and improved upon TrueType and PostScript fonts.
Oblique or sloped romanTo be distinguished from italics, in which the letterforms are purposefully drawn to be different to their upright cousins. Oblique letters are merely slanted versions of the standard roman form, often arrived at by mechanical means.
OrphanThe first line of a new paragraph stranded at the bottom of a page. This is considered to be as bad as the name suggests.
PicaOne sixth of an inch in length, the pica is associated with line-length and column width. There are 12 points or 16 pixels in one pica.
PilcrowThe paragraph symbol, it now marks the presence of a carriage return but at one time is thought to have denoted a change of theme in flowing text.
PointA standard typographical measurement equal to 1/12 of a pica or 1/72 of an inch.
ReadabilityReadability refers to the ease with which a block of text can be scanned by eye.
SerifA flare or terminating flourish at the end of a letterform's strokes believed to originate with the Roman tendency to paint letters onto marble before chiselling them out.
SidebearingThe horizontal space to either side of a letterform, separating it from other letters.
SpineThe main curved stroke of a lowercase or capital S.
SquooshThis is the inadvisable process of squashing or expanding a typeface digitally either to fit a space or for visual effect. If you do it, make sure you keep it to yourself.Squoosh is the process of squashing or expanding a typeface digitally
SpurA small projection from the curve of a letterform, sometimes known as a beak or a beard. G provides a good example.
StemA vertical, full-length stroke in upright characters.
TDCThe Type Directors Club is a typography organisation based in New York.
TittleThe brilliantly suggestive name for the dot above letters 'i' and 'j'.
Tittle is the name for the dot above the i or j
TerminalA type of curve at the end of a stroke. Examples include the teardrop shapes in: 'finial', 'ball', 'beak' and 'lachrymal'.
x-heightThe height of the lowercase x in any given typeface. This delimits the size of the glyph's detail and therefore also of its ascenders and descenders.