Amorphous materials play a significant role in uplifting the value of different applications based on physical sciences. Amorphous materials exist in nature in different forms and have been an integral part of all naturally occurring organic and inorganic materials as well as engineered systems. These materials can be in solid or liquid phases. Some examples are thin film lubricants, polymers, colloids, emulsions, window glass, granular fault gouge in earthquake faults, lignin as a cementing agent of cellulose network in plants, and biological tissues. This book provides an insight into the fundamental knowledge and various applications of new and novel amorphous materials. It also highlights the specific properties that have been recently investigated for research and development purposes.