Part 1 Background issues: Who are you and what do you want?; The limits of human and automated decision-making. Part 2 How it works: The digital you; Artificial intelligence technologies; The sea of data; The development of taxonomies; Extracting the meaning of information: using the AI methods; Information in people. Part 3 Implementation: Decision intelligence applications; Ensuring successful practical implementation; Who do you think I am! Challenges to the technology; The future of decision intelligence technology.