I have only just started reading this book. It seems to be about the way in which humans interact with computers in general, not necessarily in games or interactive drama. It’s ancient in computer terms. Being published first in 1991, it talks about the Macintosh interface as something new. 🙂
“Psychology is devoted to the end of explaining human behavior, while drama attempts to represent it in a form that provides intellectual and emotional closure.” (p. 6)