In the years after the war Escher used to take walks after supper in the woods surrounding his house in Baarn. He spent many hours there, both to clear his head but also to fill it with new ideas for graphic work. From 1951 onwards he started to write them down in his diary. One of these notes from that year goes like this:
'Traces of car and bicycle tires, perspectively seen, diagonally; Sloping recess filled with water: puddle. In it, the moon is reflected.'
He would go on to develop this idea into the woodcut Puddle, from February 1952. He subsequently described this print as follows:
'The cloudless evening sky is reflected in a puddle which a recent shower has left in a woodland path. The tracks of two motor cars, two bicycles and two pedestrians are impressed in the boggy ground.'