The manual introduces the Work Personality Profile (WPP), an observational work behavior rating instrument for use in situational assessment in work centers, comprehensive facilities, and employment settings. The WPP assesses such abilities as work attitudes, values, habits, and behaviors that are essential to achievement and maintenance of employment. It consists of 58 items that are completed by vocational evaluators using a standard 4-point scale. The WPP can serve as a basis for the assignment of clients to remedial programming and the measurement of improvement in targeted behaviors at regular intervals. The manual describes development of the WPP, its reliability and validity, and its applications. The manual includes the instrument, scoring key, profile report form, normative table, directions for administration and scoring, and 16 references. It also includes instructions for using the IBM-compatible floppy disk format of the WPP, which generates the score profile directly from ratings on the 58 items. Contains 16 references. (JDD)