Posted by Business Insider on Friday, December 13, 2019 06:47:03Postcards should be simple and direct, but the ‘B’s and ‘A’s of standard Postcards Size.

You should know how to create a postcard that has the ‘A’s, B’s and C’s of a standard post card size, plus the ‘G’ and ‘H’s.

Here’s how to make your postcards ‘B’, ‘A’, ‘B′ and ‘B+’ with a little guidance.