Preface to Second Edition / Sarah Reis & Sarah Walangitan -- 1. Introduction to the United States legal system / Konya L. Moss -- 2. How to read legal citations / Maribel Nash (updated by Sarah Reis) -- 3. Statutes / Ramsey Donnell -- 4. Cases / Jamie Sommer (updated by Bridgette Thoma) -- 5. Administrative law / Deborah Darin (updated by Philip Johnson) -- 6. Municipal law : Cook County and the City of Chicago / Walter Baumann (updated by Lisa Winkler) -- 7. Researching outside of Illinois : the laws of Indiana and Wisconsin / Heidi Frostestad Kuehl -- 8. Illinois legislative history / Jean Wenger -- 9. Free and low-cost legal research resources / Tom Keefe -- 10. Avoiding the unauthorized practice of law / Tom Gaylord (updated by Ariel Scotese) -- 11. Where to seek additional help / Victor Salas -- 12. Recommended publishers & resources / Joseph Mitzenmacher (updated by Sarah Walangitan).