Data collected by the Association of Research Libraries (ARL) in a survey of salaries of library professionals for the fiscal years 1975-76 are analyzed. Tables and graphs display: (1) personnel distribution by salary level, 1974-76; (2) analysis of salaries at ARL university libraries, 1969-1976, comparing salary indices to consumer price indices; (3) median and beginning professional salaries in ARL libraries; (4) median and beginning salaries in non-university libraries; (5) median salaries in university libraries from 1974-1977 in rank order. (AP)