Killing four hours in Istanbul Airport isn't easy. The last time I was here, my connection (to Astana, Kazakhstan) had left here before we had even left London Heathrow. While waiting for a substitute flight with Air Astana we were given vouchers for a gourmet meal in Burger King. It wasn't funny.

This time I am doing some reading. Which brings me on to…

… two books I have read recently that have proved worth recommending.

Charlotte Methuen's Luther and Calvin: Religious Revolutionaries is a beautifully written introduction to the life, teaching and impact of two of the great European Reformers. Sometimes, when listening to English evangelicals talking about ' the Reformers' in awed tones, it might seem that these were paragons of orthodoxy, defenders of simple revealed truths about God and us. We quickly reduce them to simplistic-but-useful reinforcers of our own theological preferences. Sometimes it seems we award them the same authority as that claimed by the popes they opposed. Read the reality and a different picture emerges.

Of course, they were creatures of their time and they didn't know the end of their own story. But, their stories make it clear that their theology developed and changed, their theology was often driven by their politics, and their theology might well have developed even further if they had lived on (or in other times and contexts). We dig them into a framework that suits our own preferences and then quote them accordingly. It is always amusing to hear Hooker quoted by all sides in current Anglican debates…

Reality is always more ambiguous and more complex than our debating points would allow.

The full(er) picture is to be found in Diarmaid MacCulloch's magisterial Reformation, but Charlotte Methuen's concise book does the business. It is surely coincidental, but reading the book during the synodical debates on the Anglican Covenant and women bishops caused the ringing in my head of lots of bells.

The second book I finished on the plane from Manchester to Istanbul. I know of Mark Thomas only from the occasional telly programme and his very funny People's Manifesto. Extreme Rambling is a powerful, poignant and perceptive record of his walk along the length of the Barrier erected in Israel-Palestine. He walked it in three stages, meeting people along the way and asking lots of questions. It isn't an encouraging book unless you approve of Israel's treatment of Palestinians and think the illegal settlements are a really good idea. But, it is so well written – a personal narrative that takes you into the heart of some of the fundamental problems of this beautiful and tiny piece of land.

Having read up on the history and politics of Sudan, I am now on to William Boyd's Waiting for Sunrise. Ideal for a plane journey.

[Written Saturday 12 January, posted Monday 14th. Boyd book finished…]