This book covers multidisciplinary domains. If you are working with colors and electroencephalographic signals, specially from human brain perception point of view then this book is right for you. We hope that this book will provide you help in designing experimental protocols and related laboratory setup to analyze human brain's response in electroencephalographic signals against colored visual stimuli. This book presents not only the requirements for experimental setups but also covers comprehensive background and introductory information related to human brain, EEG signal processing, suitable tool for pattern recognition along with mathematical models and Brain-Computer Interface applications. We also hope that after reading this book you would be able to recognize colors in EEG signals and will gain the skills in order to utilize colors as visual stimuli in applications for Brain-Computer Interfaces. Please note that this book is resulted as a part of PhD Thesis at University of Milan.