Sunday stamps: Letters, postcards, and the post

This Sunday Stamps' theme is 'Letters, postcards, and the post'. A great theme, of course, for mail lovers like me and all who like to visit blogs like this :-)
Below my contribution. And check Sunday Stamps to find more post-related stamps!

The first stamp I'd like to show is a Dutch stamp sheet, issued in 2001 as 'children's stamps'. These stamps ('Kinderpostzegels') are issued every year in November, to support projects for children.
The theme of 2001 was 'Child and Computer'. And the funny thing is that, although it was meant to show the pathways of electronic mail, still you can see that it's a Real Letter being brought around!



This Swedish serie of stamps shows the postal process, both in place and time (be it the paper post instead of the digital mail). (Thank you Niklas, for sending!)



How Post works? Write a letter or postcard (or create mail art). Add a stamp, put the mail item into the letterbox or ask the post office (wo)man to deliver (the posthorn has been the sign of Post in many countries), see there are several ways for transport. And finally there's the receiver's mailbox!
Stamps from the Netherlands, Estonia, Canada, United Kingdom, Romania and Finland:








P.S. Don't forget to write the postal code:



A very nice idea is Postcrossing. See this website: postcrossing.com. You can send postcards and will receive postcards at random from many places in the world.

In the Netherlands, in 2011 a stamp sheet has been issued, dedicated to Postcrossing. I wrote about it here.
And to my surprised I received a Postcrossing postcard from Finland recenlty, showing also a Postcrossing stamp.
To make the circle round: I started with a stamp sheet which showed that the computer (email) and snail mail go together well. Also in exchanging postcards via Postcrossing, the digital and snail mail life show an excellent symbiosis!