On returning from Princeton the big excitement at Peckham HQ is presiding over the final birth throes of my Humument app for iPad which is now up and running thanks to midwives Lucy and Alice, consultant Jonathan Hills and the surgical expertise of John Bowring.

So, safely delivered it shows, in colours more glowing that my pens and paints could achieve, almost like church windows at times, the whole of A Humument, including very recent pages. And all at full size, together with a device for using the book as an oracle in the manner of the randomised predictions of the I Ching (though on the iPad a little internal jiggery-pokery replaces the never quite available yarrow sticks).

Very soon after starting the book in the sixties I dreamed of its use as an oracle and it has taken forty years for technology to make that possible.

So if you have an iPad you should go straight to A Humument in the app store and have a look. If you do not have an iPad a word to Father Christmas might do the trick. If you only have an iPhone, well stick around: there will be a miniature version early next year.