This book deals with a class of advanced information regarding brain-computer interface. Brain-computer interface (BCI) systems are like pathways for direct communication between human brain and the computer. In the past few years, this technology has gained significant momentum in terms of research. Many publications have been introduced discussing different models, techniques, signal processing algorithms and their applications. This book provides an overview on recent developments and subsequent aspects of this technology. Some important topics related to BCI which have been discussed in this book are issues concerning end users, use of hybrid and wireless techniques, its application in treating neurological disorder like epilepsy and detecting human emotions, latest signal processing techniques and many more.