we have to use books written by a norman conquest....im assuming its the same one as it not a very common name...! My maths teacher Ken Nisbet, retired just before christmas leaving our class in the middle of advanced highers! he would use very random objects that left our class thinking he was talking about rubbish, but when it came to explaining theories it made sense! such as using dominoes in a line, knocking down one by one, to illustrate proofs!