Nizar Al-Naseh's 'Mental Ability and Intelligence Quotient' delves deeply into the fascinating realm of human cognitive functions. This insightful book explores the multifaceted nature of intelligence, offering readers a comprehensive understanding of what constitutes mental ability and how it can be measured. It discusses various theories of intelligence, the history and evolution of IQ tests, and the practical implications of understanding one's intellectual capacity. Al-Naseh provides valuable perspectives on improving cognitive skills, enhancing mental agility, and unlocking one's full intellectual potential, making it an essential read for anyone interested in personal development and brain science.