Mark began his relationship with Doctor Who by designing materials for the Doctor Who Appreciation Society's publications, and also the award-winning fanzine The Frame.

His first professional work was designing a number of large format books for Virgin Publishing, including Blacklight - The Art of Andrew Skilleter, and Timeframe by David J Howe. He then co-authored the popular Doctor Who reference book series Decades and The Handbook with David J Howe and Stephen James Walker. He also co-edited The Companions with David J Howe. He also co-edited the first two books of the Virgin Decalog Doctor Who short fiction collections with Stephen James Walker.

In addition to this, Mark has also written some Doctor Who fiction: short stories in the Decalog series, and a drabble in the David J. Howe edited Drabble Who collection.

Mark's career moved into Contract publishing after Virgin's licence for Doctor Who books ended. He designed magazines for Microsoft, Apple and Orange mobile. Since 2002 he has worked as the Art Director of Moneywise magazine.