gnit book cover 2003 The art on the book cover for Marjolijn Dijksterhuis's PhD dissertation is something like the Incomplete painting because of what I understood of Marjolijn's ideas. Understanding comes from 'seeing' something - a concept, image, idea - but then realizing that another viewpoint or aspect is waiting in our peripheral vision. It is this movement from one place of understanding to another that allows adaptation to occur.