The document discusses the 7 basic QC tools emphasized by Kaoru Ishikawa, who is known as the father of QC Circles. The 7 tools are: 1) Checksheet 2) Stratification 3) Histogram 4) Cause-Effect Diagram 5) Pareto Chart 6) Scatter Diagram 7) Control Chart. Ishikawa believed these 7 tools could solve 95% of problems. Each tool is then briefly defined, with examples of their uses in quality control and process improvement.