I am on assignment a large part of my time and therefore it is very difficult to answer comments and emails.  I apologize for being unreachable but I sincerely hope that some of the people below might be able to help you.

For my Commercial Representation, please contact Alice Keating, Managing Photographer Rep - / (202) 857-7237. 

For Stock Image Sales, please contact Sara Papademetriou at National Geographic Creative as they are my exclusive agency - / (202) 857-7391

To hire me as a speaker, please contact the National Geographic Speaker's Bureau