The offender is described as a white male about 5ft 8ins tall, of proportionate build, with distinctive sideburns at the time of the incident, but otherwise clean shaven.

He wore a dark polo shirt, blue slightly worn jeans and well-worn trainers. His appearance gave the impression he was working in the area.

Police Staff Investigator Nick Clark said: “We are very keen to talk to this individual in connection with this assault and would ask him to come into the police station in Stratford or any other station that is convenient.

“We would also like to hear from anyone who knows this man, recognises him from the CCTV pictures or saw the incident in WH Smith on Friday 30th August.”

Anyone with information is asked to contact Warwickshire Police by calling the non-emergency number 101 and quoting incident number 313 of 30 August 2013.

Alternatively, please remember that information can also be passed on anonymously by calling the independent charity, Crimestoppers, on 0800 555 111.