All the essential topics in dystonia are highlighted in this book. Dystonia has numerous aspects and this book deals with the related genes identified, as well as the interaction of biology with dystonia genesis. The presentation of clinical phenomenology of dystonia in this book is distinctive in its approach because not only the cervical, oromandibular/lingual/laryngeal, task-specific and secondary dystonias have been explained individually, but also because the associated features such as parkinsonism, tremors and spasticity have also been separately described. Dopaminergic therapy, chemodenervation, surgeries and rehabilitation are the clinical methods in dystonia. Their physiopathologic analysis report along with the muscle spindle involvement in dystonia has also been discussed in this book.