From the Illinois State Library website:
The School District Library Grant Program is designed to help provide more library books and materials for the students of public schools in Illinois. The state legislature has authorized up to a $.75 per pupil expenditure for qualifying schools. The grant award is based on funds appropriated by the General Assembly and the official enrollment as of the previous September 30th of a school district.
For additional information and to apply for a grant, please visit the website at https://www.cyberdriveillinois.com/departments/library/grants/schoolpercapgrant.html