En-masse vs two step-anterior retraction in orthodontic mechanotherapy

The book is a review of literature that deals with a very common debate that is present in the field of orthodontics, that is, whether to go for en-masse retraction of two-step retraction when anterior teeth are to be retracted. it attempts to clear the concepts of the readers as to what mechanics to be used while retracting and in what situations, which method needs to be chosen for anterior tooth retraction.