The book "Problems in a Solid State" by the famous author George O. Smith is a fascinating scientific exploration in the field of solid state physics. In his book, the author explores complex problems related to the structure of solids, their properties, and possible applications in modern technology. Smith's work is marked by a deep analysis of the theory of solids and contains a large number of innovative ideas that make it an indispensable source of knowledge for scientists and students interested in this branch of science. The book "Solid State Problems" is an important contribution to the development of modern physics and an excellent guide for anyone interested in the fundamental aspects of solid state electronics.