This report presents data from an annual study that collected information on teacher salary policies, salary schedules, actual salaries paid, and fringe benefits. Data came from the 1998-99 Illinois Teacher Salary Study, which involved superintendents of Illinois school districts and directors of special education and area vocational centers, and from the Teacher Service Record form, which provides information on average paid salary. The report is in six parts: (1) "Statewide Guidelines"; (2) "Statewide Summary Tables by District Type and Size"; (3) "Individual Districts' Salary Schedule and Selected Policy/Provision Information"; (4) "Individual Area Vocational Centers' Salary Schedule and Selected Policy/Provision Information"; (5) "Individual Special Education Cooperatives' Salary Schedule and Selected Policy/Provision Information"; and (6) "Policy Cost and Percent Board Paid for Fringe Benefits Per Employee and Family." Of Illinois's 895 regular public school districts, 97.5 percent have a teacher salary schedule. The statewide median scheduled salaries for beginning teachers at the bachelor's and master's level are $24,339 and $26,879, respectively. Larger districts tend to adopt higher schedules salaries than smaller districts. Over 95 percent of districts have a negotiated agreement. Two appendixes present county names and code numbers and the Illinois Teacher Salary Study, 1998-99. (SM)