Oh great, thank you Pip and Tony for the info! I've just purchased first edition's of witches abroad and Men at arms, I would like to read them in some sort of order, but going postal is next on the "to-read" list, once I've finished raising steam. Taken quite a shine to Mr Lipwig, scallywag that he is! As well as the link to cover work mentioned above, I've also found a very good comprehensive one, here is the link -http://www.lspace.org/books/covers/index.html
dont know if anyone here is aware of it? When you click on discworld titles, it shows you all the different covers that have been released for that particular novel, - perfect for identifying which ones are 1st edition uk covers etc. Perfect for me anyway! I was worried I wouldnt be able to correcty identify covers before purchasing the book. On e bay for example when you search for a title, the listing often does not have the cover artist mentioned.
A Nod is the same as a wink to a blind horse . . .