Condensed matter physics is a branch of physics that studies macroscopic and microscopic physical properties of a matter. It is majorly concerned with the condensed phase of a matter that appears when the number of constituents in a system is large and the interactions among constituents are strong. Solids and liquids are two major examples of condensed phases which arise from the electromagnetic forces between atoms. Laws of quantum mechanics, electromagnetism and statistical mechanics are used in this field to understand solids and liquids phases of condensed matter. This book studies, analyses and upholds the pillars of condensed matter physics and its utmost significance in modern times. It strives to provide a fair idea about this discipline and to help develop a better understanding of the latest advances within this field. This book is a vital tool for all researching and studying this field.