Mark has worked on London dealing floors as an equity analyst for the last 20 years. He has recently left the financial district to devote himself to his other passion: writing and public speaking. For his first book, he has turned his mind to an investigation of how to lead an authentic life. He lives in London and loves it. When he's not in town, he occupies his time with things people now call 'action sports'. Anything else to say about Mark? Ah yes - he's happy.