Myasthenia gravis is a complex subject, multidisciplinary and challenging in terms of its clinical, therapeutic and evolutionary aspects. This is evident in the gradual changes over time and in the variety of clinical presentations, the mutable therapeutic responses and the difficulties to standardize the evaluation of results. It is remarkable to review the many advances made in the field of myasthenia gravis. This book is proof of considerable progress made and of the fact that new knowledge today is acquired in shorter time than in the past. This acceleration is a signal of many successful technological advances in clinical and laboratory research. Even in myasthenia gravis, as in other research areas, researchers expect more from new achievements in rapid growing disciplines such as with immunology and genetics. To this, the authors' wanted to draw the attention of the readers.