Via this post on twitter I was made aware of the work of two wonderful photographers: AdeY and Kersti K.
Images are a great way to tell a story, or to make something clear, and the following small set is no exception.
A few times I tried to get in touch with the artists, to ask for permission to display their work here, but unfortunately the website told me:
[contact-form-7 404 "Not Found"]
I hope they will get in touch if they object to the images being shown here (and that they will fix their contact form!)