MOST CURRENT IS AVAILABLE ON LEXIS PLUS (as well)
MOST CURRENT VERSION is AVAILABLE ON WESTLAW EDGE as well).
VERY IMPORTANT - THE "ILLINOIS PRACTICE SERIES" SET IS ON WESTLAW EDGE
[The Illinois Practice Series is a Large Multi-Volume Set containing both General & Legal Subject Specific Volumes/Materials numbered sequentially (selected examples are included below]
MOST CURRENT HANDBOOKS LISTED ABOVE ARE AVAILABLE ON WESTLAW EDGE
MOST CURRENT IS AVAILABLE ON BLOOMBERG LAW