Many organisations claim to be data-centric, but how many of them have successfully meshed their various internal strata and harmonised strategic direction with system delivery? To guarantee successful agility we must start by taking a step back to simplify and understand our organisation's relationship with data. Only from this firm foundation, can we build step by step to position data at the organisation's heart and ensure the agile delivery of business focussed value. Datagility should be read by everyone from the C-suite to the codeface who has a stake in the data-driven success of their organisation. It describes a shared vision that will unite the strategic with the operational, and the business with technical delivery and provides practical steps that will ensure this vision becomes real.