Janet Ellis explores our love affair with the polka-dot and what it says about us.

The simple dot is one of the first marks man ever made. From being a word we uttered infrequently, the advent of digital has made it one we use all the time.

The dot. We wear it, listen to it, read it and gaze on it. We send it through the air and under the waves. Each programme in this series circles a different aspect of this simple mark.

Contributors include film and TV costume designer Leonie Hartard, designer Cressida Bell, and a clown, Mattie Faint.

Producer: Caroline Raphael
A Dora production for BBC Radio 4. Show less