A Little Something to Help.
Ascender – rises above the x-height
Descender – extends below the baseline
Serif – short line/stroke on open ends of letters
Cap-height – the height of a capital letter measured from the baseline
x-height – the height of lowercase letters reach based on height of lowercase x
Baseline – the invisible line where all characters sit
Descender line – the invisible line marking the lowest point of the descenders within a font.
©thefutur