This book presents an overview on the various applications and implementations of the technology of Augmented Reality in the contemporary world. Augmented Reality (AR) complements Virtual Reality (VR) in several ways. It is a natural extension from VR, developed several decades earlier. Due to the benefits of the user being able to see both the real and virtual objects together, AR is far more instinctive, but is not entirely detached from human factors and other restrictions. AR does not utilize much time and effort in its applications because there is no need to construct a whole virtual scene and environment. This book demonstrates novel and developing application areas of AR comprising of applications in outdoor and mobile AR, such as construction, restoration, security and surveillance; a number of new and beneficial applications in daily living and learning; and lastly, dealing with AR in medical, biological, and human body studies.