Smile analysis and smile design have become key elements of orthodontic diagnosis and treatment planning. It is a multifactorial decision-making process that allows treating patients with an individualized approach. In the contemporary orthodontic paradigm, recent advances help us in creating a pleasing smile by the best possible arrangement of facial symmetry and proportions, smile framework, and tooth¿gingival characteristics in the esthetic zone. Thus, the aim of this book is to emanate sound knowledge about facial esthetics, orthodontic mechanics and growth changes as well as the principles of cosmetic dentistry that can help the orthodontist to truly live up to the epithet of the "Smile Architect".