Interaction of Color A Book by Josef Albers yalebooks.yale.edu The deception of colorPractice before theory50 redsNot the what but the howScotopic seeing+11 More Irwin Fluorescents colorgraphicscommunicationteaching
Contrafreeloading A Definition en.wikipedia.org Contrafreeloading is an observed behavior in which an organism, when offered a choice between provided food or food that requires effort to obtain, prefers the food that requires effort. workbehavior