A notice in Abingdon Library reads: ‘Welcome all puzzlers to our Community Jigsaw’ and in smaller type ‘Please supervise children at all times and respect the work of previous puzzlers.’ and ‘Not suitable for children under 3.’

By Tuesday the road, pavement and most of Roysse Court were complete, and the bushes. The remaining building pieces had been sorted into the box lid or tried out on the board.

By Friday the buildings, including St Nicolas Church and the Guildhall, are complete. Visitors come and go, stopping to add a handful of pieces – possibly none, as it gets harder. Only the featureless sky is left to do.

The image is titled Stadtzentrum von Abingdon — ‘Abingdon town centre’ — and comes from a 1,000-piece puzzle by the German company Lais.

Community jigsaws have become a familiar sight in Abingdon (and other) libraries in recent years. They offer an activity that anyone can join, away from phones or computer screens.