System Improvements, Inc., 1999. Book is in acceptable condition with some minor wear to the cover and dirt on some interior pages also includes Taproot: The System for Root Cause Analysis, Problem Investigation & Proactive Improvement as a bonus book.
Blu-ray discs are clean. Jewel case is cracked along the top of it's backside; though this does not interfere with opening and closing the case. Minor scuffing to back cover. No booklets or supplements included.