"Deafness, Deprivation, and IQ" by Jeffrey Braden is a comprehensive academic book that explores the relationship between deafness and intelligence. This work addresses the often overlooked topic of deafness as a 'low-frequency' disability that does not receive the same level of attention in research as other disabilities. Braden combines two frequently separate fields of study in this book: research on intelligence and deafness. He provides the most extensive collection of data on the intelligence of deaf individuals that has ever existed. Through a careful and well-documented analysis of the available research findings, it becomes clear that deafness can have both positive and negative effects on intelligence. While some studies find an impact of deafness on intelligence, others show that there is little effect on nonverbal intelligence measures. This book is a valuable resource for professionals in the social sciences and offers deeper insights into the individual differences and abilities within the deaf population.