Well.... having grown up in the world of Letter or 8 1/2 x 11, and Legal or 8 1/2 x 14, it was nice to move to Australia and find that long thin paper that I associated with Europeans. It has a name, A4, and the smaller it gets, i.e. each time it's folded in two, the number increases; and when the paper is doubled, the number decreases. So half an A4 is an A5, etc. Gets confusing. I get confused, but most time I manage.
Recently I saw a reference to a card that was A2, but it was talking about small cute images (see Kokeshi Dolls Card) ... boggled my mind. Annette, whose album this is, is no dummy, so I had to ask, what is that A2 and why is it so small. Well, we're not quite sure what happened (i.e. sort of like the Beta vs VHS story!) but these links might help:
or then again, you might be left scratching your head like I was.
So beware, if you order A2 card from Australia you'll get one thing, and if you order it from the USA you'll get something else.
Very very interesting...