Marc is a writer and travel journalist and photographer. His work appears in the Guardian, Times and Telegraph. His writing is published in around the world.
If you enjoy travel writing, have a look at some of his articles on travel intelligence.
Marc runs popular in house tours at the National Portrait Gallery.
He is an expert on William Shakespeare.
Come to my free public tour in the National Portrait Gallery on Sunday the 15th November. Meet the Tudors Starts at 3pm.