Mark Jeffrey, based in Marina del Rey, CA, US, is currently a Published Author at Harper Collins, bringing experience from previous roles at Guardian Circle, Consultant, Thisweekin and Harpercollins Publishers. Mark Jeffrey holds a 1985 - 2000 Bachelor of Science in Computer Science @ University of New Hampshire. With a robust skill set that includes Social Networking, Cloud Computing, Entrepreneur, Social Media, E-commerce and more, Mark Jeffrey contributes valuable insights to the industry. Mark Jeffrey has 4 emails and 1 mobile phone number on RocketReach.