Textbook and problem set for the Quality Control (QC) certification exam. Includes a practice test and red sheet. - Title: QC Certification Textbook & Problem Set, Level 2 - Author: Hitoshi Takayama - Features: Includes practice test, includes red sheet Thank you for viewing. I passed the Level 2 exam, so I'm offering this to those who will be taking the exam. There is a folded corner on one page. There are no markings. The inside is clean, but the exterior has some soiled areas, so please judge from the photos.