Pens may be one of the most ancient tools for human beings to record their life and thoughts. It enabled cultural heritage and history to be passed on from generation to generation, and the joy and sorrow of life could be conveyed in a visible form. Here is our selection of favorites from the photos you submitted, and you can see and share all the submissions shared with us on Twitter.
Don’t forget to follow us on Flickr and on Twitter to see the next challenge directly in your feed. We will be back with the new theme next Tuesday.