THIS METHOD IS ALSO CALLED BEHAVIOR ARCHAEOLOGY BECAUSE, HERE, YOU OBSERVE TRACES OF PAST EVENTS TO GET INFORMATION OR A MEASURE OF BEHAVIOR, TRAIT, OR QUALITY OF YOUR SUBJECT. CENTRAL TO THIS METHOD OF OBSERVATION ARE THINGS YOU LISTEN TO THROUGH TAPE RECORDINGS AND THOSE YOU SEE IN PICTURES, LETTERS, NOTICES, MINUTES OF MEETINGS, BUSINESS CORRESPONDENCE, GARBAGE CANS, AND SO ON.