Chapter 1: Fuzzy Sets and Their Extensions: Literature Review on Fuzzy Extensions of AHP -- Chapter 2: Interval Type-2 Triangular Fuzzy AHP: Evaluation of Sustainable Port Service Quality Factors -- Chapter 3: Swot Analysis integrated Interval Type-2 Triangular Fuzzy AHP: Application on e-Scooter Adaptation In Turkiye -- Chapter 4: Interval Type 2 Fuzzy Z- AHP and Interval Type 2 Fuzzy-Z Waspas: Selection of Industry 4.0 Sub-Technologies -- Chapter 5: Interval Type-2 Trapezoidal Fuzzy AHP and Modified Delphi Method: Evaluation of Railway Transportation for Istanbul, Turkey -- Chapter 6: Single-valued intuitionistic fuzzy AHP and interval-valued intuitionistic fuzzy AHP -- Chapter 7: Interval Valued Intuitionistic Fuzzy Z extensions of AHP&CODAS: Comparison of Energy Storage Alternatives.