Dermatology is a medical field which deals with the diagnosis and treatment of skin diseases. It is also concerned with the management of some cosmetic problems of skin, nails and hair. The sub-fields of dermatology that deal with the problems and diseases of the skin are cosmetic dermatology, immunodermatology and Mohs surgery. Cosmetic dermatology can also include cosmetic procedures such as liposuction, face lifts and blepharoplasty. Immunodermatology is concerned with the treatment of immune-mediated skin diseases such as lupus, bullous pemphigoid, and other disorders. It is also used in the diagnosis and treatment of several diseases such as those which affect gastrointestinal and respiratory tracts. Mohs surgery focuses on the excision of skin cancers by using a tissue-sparing technique. It requires an in-depth knowledge of both pathology and surgery. This book contains some path-breaking studies in the field of dermatology. It presents researches and studies performed by experts across the globe. Those with an interest in this field would find this book helpful.