Data and Decisions

Organisations do not run on activity. They run on decisions.

This book explores how those decisions are made, how they depend on data, and how both can be improved - and, increasingly, automated.

It explains how data is sourced, structured and delivered, how AI systems - especially large language models - actually work, and where their limits lie. It shows not just what these systems can do, but where they fail, and why.

Grounded in practical experience, it offers a framework for using data and AI to build more effective organisations - and to prepare for a future in which many decisions no longer require us at all.