chapter 1 1 Preliminaries: ants and robots, parlour games and steam drills -- part Part I Informational environments -- chapter 2 Resurrecting Dretskean information -- chapter 3 Varieties of perception -- chapter 4 The domains of natural information -- chapter 5 Making an environment -- chapter 6 6 What is an informational environment? -- part Part II Environments of intelligence -- chapter 7 The extension of the extended mind -- chapter 8 The nature of cognitive artefacts -- chapter 9 9 The intelligence of environments -- chapter 10 Afterthoughts on conceptual analysis and human nature.