Jeff Green is a man who's not scared of making those big life-changing career changes.

Once upon a time he was training to be an engineer but decided if he was going to spend a lifetime dealing with nuts he'd rather do it with the ones in comedy clubs than the ones in factories.

He learned the basics at a north London comedy workshop, developing an observational style couched in an easy-going, conversational manner.

The nice guy demeanour, allied to chatty patter, allowed audiences to easily warm to him, which helped make his sudden dart into areas of bad taste all the more electrifying.

Jeff, a veteran of the Edinburgh festival, has gone truly international with tours of Australia and is now a best selling author too.