The first greeting cards were sent by the ancient Chinese at New Year and by early Egyptians sending greetings on papyrus scrolls. In the early 1400s in Germany people began sending New Year cards and Valentines made with woodcuts on handmade paper. By the mid 1800s, the sending of cards had become a popular activity across Europe, mainly due to advances in printing and the introduction of the postage stamp. The first known printed Christmas card appeared in London in 1843, when Sir Henry Cole hired artist John Calcott Horsley to design a holiday card that he could send to his friends and acquaintances. It was quite controversial because the kids on the card were drinking wine.
On my cards I have digital reproductions of some of my prints. All cards are either A6 or 140mm square and printed in the UK on recycled 300gms card with eco toners.