This book contains mathematical concepts and theories on topic of thermoelasticity. The research work presented here is in addition to those already presented in Volume-I and Volume-II. The concept of thermoelasticity which forms the central theme of this book, finds its roots and application in branches of Physics , Mathematics , and Engineering. Thermoelastic behavior of different geometrical structures and different boundary conditions are discussed in depth . The mathematical approach for thermoelastic problems may be of immense help for those students , researchers and teachers pursuing work on thermoelasticity. The contents will be helpful to increase the thermal efficiency of materials.