1. Introduction2. Historical accounts of TPEs and TPVs from research to commercialization including review of patent and open, published literature3. Block copolymer phase separation basics, thermodynamics and applications in thermoplastic elastomers4. Styrenic-based thermoplastic elastomers by anionic polymerization 5. Acrylic based TPEs Functional Acrylic based TPE 6. Polyolefin-based TPEs; Fundamental chemistry problems7. Polyolefin-based TPEs: Fundamental blending issues8. Polyolefin-based TPEs: Reactive Processing9. TPEs based on polyisobutylene10. TPE based on graft copolymer11. TPEs based on Rubber/plastic blends with few chapter12. TPEs based on Polyether-polyesters13. High Performance TPEs; Fluorinated TPEs14. High Performance TPEs; Silicone based TPEs15. High Performance Ionic Thermoplastic Elastomers16. Advances in Thermoplastic Polyurethane Elastomer; Design & Applications and their Circularity17. TPE (Nano) Composite, processing additives on TPEs18. Thermoplastic vulcanizates; Historical perspectives Synthesis strategies19. Sustainability in TPEs; Bio-based TPE20. Sustainability in TPEs; Biodegradable TPE21. Recycling and Circular Economy of Thermoplastic Elastomers22. Outlook on TPEs & Future market