Art and upcycling

The household Physicians (2008)

Once in a while, I like to associate upcycling and art in my post.
Upcycling could be considered as an art by itself, but some people can bring upcycling even higher.
Brian Dettmer is one of them, he can "sculpt" books a way I've never seen before, I  also like the way he reuses cassette tapes. What do you think?

Tab (2005) Altered set of Encyclopedia

Made with melted cassette tapes... and talent.