What People Don't Know, They Imagine.
There are only two ways to flip a card: over the horizontal edge or over the vertical. Seems pretty simple, but a flip in the wrong direction will make Side B appear upside down, and there’s no way around it but to optimize your printing for the most common flip style. All you need to know is which way that is.
I asked the printer, but he didn’t know. So I asked the fireman, the greengrocer, the butcher, the baker… they didn’t know!
