Tat*: Inspirational Graphic EphemeraTat* is a bit of a graphic designer's curse. Walk into any design studio and you will see tat pinned to the walls or placed with loving care on top of a computer screen. Even the purist will have a secret cache hidden away somewhere. Andy Altmann began collecting tat while he was on his Foundation course, getting ready for an interview at St Martins School of Art. He'd been asked to present a sketchbook, but worried that he couldn't draw very well, he