ACM - affordances
Donald A. Norman
The theory of affordances
In paperback as The Design of Everyday Things
Informing Security Indicator Design in Web Browsers
Providing Both Physical and Perceived Affordances Using Physical Games Pieces on Touch Based Tablets
Interface Affordances and Social Practices in Online Communication Systems
Magicscroll
Sketching Shape-changing Interfaces: Exploring Vocabulary, Metaphors Use, and Affordances
Narrative Affordance: Towards a Model of the Foreseeability and Perceivability of Story Elements in an Interactive Narrative