Cognitive psychology is a branch of psychology that studies internal mental processes, including activities such as memory, attention, problem-solving, and language, which are often referred to as higher mental functions. The central focus of cognitive psychology is to understand how individuals process external stimuli to think, perceive, remember, forget, solve problems, focus, and learn. This is typically achieved through controlled psychological experiments involving human subjects, with the use of advanced neuroimaging techniques such as magnetic resonance imaging (MRI) and positron emission tomography (PET) to observe brain activity during tasks involving mental imagery and interpretation. The cognitive models derived from such research have significant applications in various fields, including educational psychology, personality psychology, social psychology, developmental psychology, abnormal psychology, and economics. This book is compiled in such a manner that it will provide in-depth knowledge about the theory and practice of cognitive psychology. It unfolds the innovative aspects of the discipline which will be crucial for the holistic understanding of the subject matter. This book, with its detailed analyses and data, will prove immensely beneficial to professionals and students involved in this area at various levels.