The marks that sit on a keyboard and in running text — reference marks, editorial marks and the two signs that email and social media made universal. Grouped because they are identified the same way: a reader meets one in text, cannot name it, and needs to work out what it is from its shape and where it appeared. Several have a second life far from their original purpose, the at sign and the number sign most obviously.
A looping mark meaning 'and', developed from a ligature of the Latin 'et'.
A lower-case a enclosed by a curling stroke, used in email addresses and handles.
Two pairs of crossing strokes, used as a number mark, a hash and a musical sharp.
A small radiating star used to flag a footnote or an omission.
Two interlocking S shapes, used to cite a numbered section of a text.
A reversed P with a doubled stem, marking the start of a paragraph.
A cross-shaped mark with a long lower arm, used as a second footnote mark.
Three dots marking an omission or a trailing-off in speech.
Paired marks enclosing reported speech.
A dot above a comma, joining related clauses.
A filled dot marking an item in a list.
A wavy horizontal stroke with several unrelated uses.
A single upright stroke, used as a separator and an operator.