In the days of typewriters we had no choice as every document appeared in a font called Courier.
The chances are that few people knew that was its name.
Now we're bombarded with all kinds of typefaces.
We might have seen Times New Roman in the newspaper and Verdana on our e-mail, and Comic Sans is the popular choice for a party invitation.
We instantly recognise the fonts used by the world's biggest brands.
In From Arial to Wide Latin, Ian Peacock explores how the fonts we chose are sending secret subliminal messages about who we are.
He argues that the fonts we dress our words in are as much of a fashion statement as the clothes we wear.