This video is a bit crazy. It shows some of Irma Boom books but there are plenty of other videos of her discussing her work. She is a great speaker and has intelligent things to say about books and design.
I found this picture with a caption saying this is door knobs found in coal. I believe it to actually be some type of coral or other formation under water. But would like some further advice to clarify what exactly it is! Any information will help!