Third Millennium are publishing a quite excellent book on Magna Carta edited by Professor Nicholas Vincent. It has a special Lincoln edition which highlights the particular role of this city in the Magna Carta story.
There is currently the opportunity to subscribe to this edition. Here is the link http://tmiltd.com/products/magna-carta-lincoln
I have had a sneak preview and find something totally absorbing. This ranges from the nature of law to the detail of just what the pressures were that brought it all together. But there is much more, it is the legacy of Magna Carta that truly matters. This is seen clearly in the constitution of the United States, but it is much wider. It is almost the legal air we breath, in much the same way as the christian heritage of 1000 years is the air we in the western world breath. It may not have detailed application but its influence in unmistakeable.