I was only recently asked (through flickr) to write and illustrate an article on postboxes for a South Korean teenage girl magazine... I don't even have any postboxes in my flickr stream!?...
Here's just part of the series of questions they wanted me to answer...
EG What is the most memorable letter? And what is the reason and what is the letter written about?
EG What images come to mind when you think about letter(or postbox)?
EG If you want to create artwork based a letter(or postbox), what would you like to make?
EG Now, if you send a letter? If you were to write a letter, what would you write about? Please describe simulated letter.
EG If you want to leave trace on a letter, what do you think it(seal on the wax, sign, pen and ink....)? What is the reason?