Introduction -- 2. Introduction to Type-2 Fuzzy Sets -- 3. Interval Type-2 Fuzzy Logic Controllers -- 4. Analytical Structure of Various Interval Type-2 Fuzzy PI and PD Controllers 5. Analysis of Simplified Interval Type-2 Fuzzy PI and PD Controllers -- 6. On the Design ot IT2 TSK FLCs -- 7. Looking into the Future.