THIS STUDY IS PART OF A LARGER SURVEY, THE POSTCENSAL STUDY OF PROFESSIONAL AND TECHNICAL MANPOWER, WHICH WAS BASED ON CONCEPTS DEVELOPED BY THE UNIVERSITY OF CHICAGO'S NATIONAL OPINION RESEARCH CENTER AND DATA COLLECTED AND TABULATED BY THE U.S. BUREAU OF CENSUS. THE INFORMATION PRESENTED IS APPROXIMATE BECAUSE THE SURVEY WAS INTENDED FOR A LARGE NUMBER OF DIVERSE EDUCATIONAL GROUPS AND WAS BASED ON A REPRESENTATIVE BUT LIMITED SAMPLE. IMPORTANT FINDINGS ON THE EDUCATION OF LIBRARIANS WERE THAT THE MEDIAN YEARS OF SCHOOL COMPLETED FOR BOTH PUBLIC AND SCHOOL LIBRARIANS WAS 17 PLUS YEARS, WITH THE MASTER'S DEGREE MOST CHARACTERISTIC FOR MALE PUBLIC LIBRARIANS AND THE BACHELOR'S DEGREE WITH ADVANCED WORK MOST COMMON FOR WOMEN PUBLIC LIBRARIANS AND SCHOOL LIBRARIANS. THE MEDIAN AGE FOR PUBLIC LIBRARIANS WAS 40.5 YEARS FOR MEN AND 49.2 YEARS FOR WOMEN, MAKING 23 PERCENT OF THE FEMALE PUBLIC LIBRARIANS ELIGIBLE FOR RETIREMENT IN THE DECADE OF THE 1960'S. FOR SCHOOL LIBRARIANS THE MEDIAN AGE WAS 39.5 YEARS FOR MEN AND 50.2 YEARS FOR WOMEN. IN 1961, THE MEDIAN EARNINGS OR ESTIMATED INCOME OF SCHOOL LIBRARIANS WAS $5,873 AND $5,625 FOR PUBLIC LIBRARIANS, WHILE MALE PUBLIC LIBRARIANS INCREASED THEIR PRIMARY EARNINGS 23 PERCENT THROUGH SECONDARY EMPLOYMENT. THE QUESTIONNAIRE USED FOR THE POSTCENSUAL STUDY IS APPENDED. THIS DOCUMENT IS AVAILABLE AS FS 5.215--15061 FROM THE SUPERINTENDENT OF DOCUMENTS, U.S. GOVERNMENT PRINTING OFFICE, WASHINGTON, D.C. 20402, FOR $0.30, 36 PAGES. (JB)