Part I. Pathophysiology and nosology of dystonia -- Dystonia: History of the term and syndrome -- Physiology of dystonia -- Genetics of dystonia -- Nosology and classification of dystonia -- Secondary dystonias -- Dystonia - parkinsonism syndromes -- Dystonia in multiple system atrophy and progressive supranuclear palsy -- Psychogenic dystonia -- Part II. Treatment of dystonia -- Pharmacological treatment of dystonia -- Botulinum toxin treatment of dystonia -- Long-term BoNT treatment of dystonia -- Brain plasticity in dystonia -- Surgical treatment of dystonia -- Indications of deep brain stimulation in dystonia -- Pitfalls of deep brain stimulation in dystonia -- Neurorehabilitation in dystonia -- Dystonia in Art: The Impact of Psychiatric and Neurological Disease on the Work of the Sculptor F.X. Messerschmidt.