Hearing Across the Lifespan-Assesment and Disorders is the second book in a three-book series series focused on Translational Perspectives in Auditory Neuroscience. The book reviews what is known about the developing auditory system, what happens as we age, as well as a brief synopsis of the disordered auditory system. These aspects of human perception are then extended by the discussion of state of the art noninvasive physiologic measures of hearing. Many of these measures are tools used to assay the auditory system in applied research studies, as well as used in the clinical evaluation of subjects. The first book in the series is Normal Aspects of Hearing. The third book is entitled Special Topics and provides "translational" perspectives on current topics in hearing science. All three books in the series are also available to purchase as a bundle.