In this book various conditions are discussed, essentially the state of answers of question. For the ease of reading, the questions and significant facts have been mentioned on the same page so that readers have not to revert back of the book for the desired answer. The book is broadly divided in clinical part, including videos, radiological and electrophysiological parts, and the format works as a quiz book, as well.  To seek a specific topic, the reader is directed to the index at the end of the book.