Yesterday I spent some time exploring Hereford Cathedral’s online Mappa Mundi, Chained Library and Magna Carta site, which you can view here (link opens in new window). It is brilliantly done, both historically and technically, and the cathedral authorities are to be congratulated (and thanked) for making such a resource freely available over the internet. Many years ago, when I was making eBooks on a regular basis, I did one on the wood engravings of Sr Margaret Tournour and was fascinated by what the combination of back lighting/high magnification afforded by the computer screen revealed. Here is yet another example of how contemporary technology can enrich our understanding of history and historical artefacts, giving us cause for wonder. If you can, spend a few minutes exploring the Mappa Mundi today.