Sign

I had various things to do in town today and I saw this on my travels, I like a good pun now and again.
I have been preparing a short talk which I have to present tomorrow and this is something well outside my comfort zone.  I have made some notes, printed off some articles which I think are relevant, and printed some photographs to illustrate part of what I am talking about, so hopefully that will help me.  I will be glad when it's over.