Collaborative Sketchbooks

These pictures are from Look at Book, which was a collaborative sketchbook by four artists. It was sent around via post, and each page is supposed to be a sort of reaction to the previous. I used to worship this book.
I mention it because an old school friend asked me today if I wanted to do a collaborative sketchbook, which I'm pretty psyched about! I've always wanted to do one, and before I came to uni I used to love working into sketchbooks and making interesting page spreads. But since then I seem to have stopped, which is a little annoying, so this should be good.