My relationship with books is a bit like that one has with passengers in a slow-moving lift, a relationship which is perfectly illustrated by a visit to my bedside table. Here, alongside reading glasses and case, watch, alarm clock, notebook and pen sit a couple of piles of books. (We won’t talk, just now, of the ones that sit out of sight in the top drawer.) I’m a rather faithless reader, picking up books that take my fancy, sometimes sticking with one for the duration but mostly flitting from one to another. I like to pretend that I do this because different titles advantageously inform each other; but it may simply be that I have a goldfish brain, unable to sustain a thought for long.