Last day of my out of London signings. A week in which I estimate, conservatively, that I’ve signed five and a half thousand books, and in which we hit the No. 1 slot on the Sunday Times list in some style, with figures of 31,700, 11,000 more than Bryson in second place and considerably more than even the big Christmas paperbacks – Pratchett and Francis and Bridget Jones’s Diary.