The document outlines the top 10 learnings from a Chief Data Officer's experience over 24 months. They include issues like lack of defined direction and executive alignment, focusing too narrowly on regulatory demands instead of innovation, difficulties communicating the CDO opportunity, challenges placing the CDO office in the organization, and underestimating how long it would take to establish the office. It provides advice on establishing a process to involve key leaders, defining the CDO mandate and skills needed, aligning with stakeholders, and developing an operating model. The overall message is that establishing a successful CDO role takes longer than expected and requires addressing many organizational factors.