Dizziness comes in many forms in each age group - some specific to an age group (e.g. benign paroxysmal vertigo of childhood) while others span the age spectrum (e.g., migraine-associated vertigo).&nbsp; This content organizes evaluation and management of the dizzy patient by age to bring a fresh perspective to seeing these often difficult patients. <br>The pediatric section begins with a review of vestibular embryology and physiology and moves toward a comprehensive discussion of methods - both bedside and in the vestibular lab - to evaluate the child with dizziness, or "clumsiness,"&nbsp; concluding with an exploration of the differential diagnosis of dizziness and relevant findings. Dizziness in the adolescent points to migraine headache as a common cause, enumerates treatment strategies for migraine-associated vertigo, and offers guidelines for when to image the adolescent with dizziness.<br>Adult dizziness is more a compilation of the relevant diagnoses, but the section starts with dizziness that can affect young adults - especially members of our Armed Forces fighting overseas - traumatic brain injury/blast injury. This content also has relevance for patients in<br>motor vehicle accidents and head injury patients. Medicolegal aspects of evaluation and management of dizzy patients are succinctly<br>covered in "Evaluation of Dizziness in the Litigating Patient."&nbsp; The final chapter in this section, "Other Causes of Dizziness," provides <br>a very thorough overview of unusual causes of dizziness in the adult population.<br>Dizziness associated with advancing age is quite common and often multifactorial, as is highlighted in the chapter "Dizziness in the<br>Elderly."&nbsp; A comprehensive review of the posterior cerebral circulation, transient ischemic attacks, and posterior circulation stroke is <br>presented in the chapter, "Vertebrobasilar Insufficiency."&nbsp; No coverage of dizziness in the elderly is complete without an exposition of polypharmacy and medication effects.&nbsp; Other common diagnoses of dizziness in the elderly are thoughtfully reviewed along with a survey <br>of new and old techniques to rehabilitate the older patient with dizziness or disequilibrium.<br>Patients presenting with dizziness can harbor serious, if not life-threatening, conditions such as stroke, brain abscess, or severe chronic<br>&nbsp;ear disease. At the end of several articles, the reader will find a relevant table - What Not To Miss - a list of clinically significant signs <br>and symptoms not to ignore, or conditions (differential diagnosis) that may masquerade as that discussed in the chapter but critically<br>important that the practitioner should not overlook in the evaluation of the patient. Many articles in this edition start with a clinical <br>scenario so the reader can recognize common presenting symptoms, demographic features, and factors in the medical history that <br>will aid in making the diagnosis.&nbsp;