Arnold Robbins is a professional programmer and technical author who's worked with Unix systems since 1980. A heavy user of AWK and gawk (GNU's version), he helped shape the POSIX standard for AWK and currently maintains gawk and its documentation.Elbert Hannah is a professional software engineer and software architect recently finishing a 21-year career in the telcom industry. He wrote a full screen editor in assembler in 1983 and has had special interest in editors since.Linda Lamb is an editor with O'Reilly Media, having worked in various capacities, including technical writer, editor of technical books, and marketing manager.