A Karger 'Publishing Highlights 1890-2015' title The significant progress in the understanding of the pathogenesis and the treatment of Graves' orbitopathy (GO) has warranted a second edition of this book within three years of the first. Now also fully incorporated is the EUGOGO consensus statement on management of GO, which since has been accepted worldwide as a useful guideline. Furthermore all chapters have been thoroughly updated. Subjects covered include the pathology of GO and the controversial views on its pathogenesis; assessment of changes using reliable measuring techniques; medical management of GO including established and alternative treatment options; technical explanations and illustrations of various surgical procedures and finally, the molecular, immunologic, and clinical aspects of this complex disorder. Two new chapters have been added: one describing the socioeconomic impact of the disease and the other outlining the Amsterdam Declaration on Graves' Orbitopathy. The successful question-and-answer format facilitates its use as a reference guide for medical practitioners and surgeons working in the fields of ophthalmology, internal medicine, endocrinology, pediatrics, immunology, as well as otorhinolaryngology.