"This book is devoted to one of the most important problems of physics and technology, the nonlinear effects thermopiezoelectric materials. The book deserves to be related with the motto "Multum in parvo", because the exposition is very concise -- the book must be read carefully and it is surely not a first reading work in this domain. Finally, we think this volume represents a reference book for the domain of nonlinear electromechanical effects and without any doubt it will be read with great interest by physicists as well as by mathematicians." Mathematical Review