Librarian Note: There is more than one author in the Goodreads database with this name. This profile may contain books from multiple authors of this name. Mark^Baker. Dr Mark R Baker is a Tech and Start-Up Advisor and Digital Transformation Consultant. He is author of the Chief Digital Officer Handbook and Digital Transformation (number one in the category on Amazon in the UK) and is involved in a number of tech start-ups in Silicon Valley.