the issues raised by Garfinkel's writings. Directly inspired by Garfinkel, Harvey Sacks undertook to investigate the sequential organization of conversational interaction. This program, pioneered with colleagues Gail Jefferson and Emanuel Schegloff, has produced a large and flourishing research literature. A second, smaller literature has grown out of another of Sacks' interests having to do with social categorization practices. Sociologist Emanuel A. Schegloff used the concept of ethnomethodology to study telephone conversations and how these they influence social interaction. Gail Jefferson used ethnomethodology to study laughter and how people know when it is appropriate to laugh in conversation. John Heritage and David Greatbach studied rhetoric of political speeches and their relation to the amount of applause the speaker receives, whereas Steven Clayman studied how booing in an audience is generated. Philip Manning and George Ray studied shyness in an ethnomethodological way. Ethnomethodologists such as Graham Button, R. J Anderson, John Hughes, Wes Sharrock, Angela Garcia, Jack Whalen and D. H Zimmerman all study ethnomethodology within institutions. Early on, Garfinkel issued a call for ethnomethodologically informed investigations into the nature of work. This led to a wide variety of studies focusing on different occupations and professions including, laboratory science, law, police work, medicine, jazz improvisation, education, mathematics, philosophy, and others. Garfinkel's program strongly resonates in a wide range of disciplines, including sociology, linguistics, gender studies, organisation studies and management as well as in the technical sciences. In the technical sciences, ethnomethodology's influence can probably be ascribed to Lucy Suchman's analysis of learning to use a copy machine. It came to serve as an important critique of theories of planning in Artificial Intelligence. Selected publications The bulk of Garfinkel's original writings came in the form of scholarly articles and technical reports, most of which were subsequently republished as book chapters. To appreciate the sequential development of Garfinkel's thought, however, it is important to understand when these pieces were actually written. Although published in 2006, Seeing Sociologically was actually written as an annotated version of a draft dissertation proposal two years after arriving at Harvard. Toward a Sociological Theory of Information was also written while Garfinkel was a student and was based on a 1952 report prepared in conjunction with the Organizational Behavior Project at Princeton. Some of Garfinkel's early papers on ethnomethodology were republished as Studies in Ethnomethodology. This publication is well known by many sociologists. Garfinkel subsequently published an edited anthology showcasing