Textbook in PDF format Dermatopathology is the backbone of dermatology. Sound knowledge of dermatopathology enhances the prowess of a clinician. Dermatology being a visual specialty, makes it easier for a clinician to learn dermatopathology. It is, therefore, not surprising that so many dermatopathologists are also clinical dermatologists. This atlas “IADVL Color Atlas of Dermatopathology” is all encompassing with around 1,500 images. The format makes it easy to learn and will be useful to both residents and practitioners in both dermatology and dermatopathology. There are total 22 chapters given in this chapter which covers approach to dermatopathology, clues and pitfalls in diagnostic dermatopathology, psoriasiform tissue reaction, lichenoid and interface dermatitis, spongiotic dermatoses, vesiculobullous disorders, granulomatous tissue reaction, disorders of pigmentation, panniculitis, diseases of collagen, elastin and mucin, pilosebaceous disorders and cysts, cutaneous deposits, perforating disorders, cutaneous infections, appendageal tumors, melanocytic lesions, etc. This atlas reflects the science, practice and art of dermatopathology in India. While not an exhaustive display of all dermatology conditions, it showcases the histology of common skin disorders in a systematic manner. Approach to Dermatopathology Clues and Pitfalls in Diagnostic Dermatopathology Psoriasiform Tissue Reaction Lichenoid and Interface Dermatitis Spongiotic Dermatoses Vesiculobullous Disorders Granulomatous tissue Reaction Vasculitis and other Vascular Reaction Patterns Disorders of Pigmentation Panniculitis Diseases of Collagen, Elastin and Mucin Pilosebaceous Disorders and Cysts Cutaneous Deposits Perforating Disorders Cutaneous Infections Epidermal Premalignant and Malignant Conditions Appendageal Tumors Melanocytic Lesions Vascular and Other Tumors Cutaneous Infiltrates—Nonlymphoid Lympho-proliferative Disorders of Skin Miscellaneous Conditions