The life and career of this week’s guest has been a literal roller coaster.

Mark Webb fell into PR and media relations by chance, after spotting a job ad for the new Eurodisney theme park (later Disneyland Paris) while on his way to work another season as a ski rep.

His impulsive decision to apply for that post has shaped much of the following 30 years.

After experiencing the famous Disney magic as an A-list guest liaison, escorting the likes of Michael Jackson around the park, Mark took that sense of excitement with him into more conventional comms roles with David Lloyd Leisure and Dixons Carphone.

It was as Head of Group Social Media for Dixons that he embraced and mastered the power of Twitter as a comms tool to humanise a brand. But it was during those same years that he was diagnosed with multiple sclerosis.

Adopting an overwhelmingly positive attitude, Mark resolved to live life to the full, whatever MS throws at him.

Now Head of Comms at Shift.ms – a charity and social network for MSers – Mark is a public speaker and tireless campaigner, raising funds and awareness about this progressively debilitating condition.

We guarantee you’ll be entertained, touched and inspired by his conversation with Katie, although ‘inspiring’ and ‘inspirational’ are terms Mark would rather you didn’t use to describe him. Re-Mark-able, perhaps?