Dermoscopy is a non-invasive, widely used diagnostic tool that aids the diagnosis of skin lesions and is proven to increase the accuracy of melanoma diagnosis. This atlas is a comprehensive guide to dermoscopy for practising dermatologists and trainees. Beginning with an introduction to the principles of dermoscopy and an explanation of the parts and types of dermoscope, the next chapter covers dermoscopic histopathological correlation. The following sections cover common dermatological conditions, including hair and nail disorders. Numerous dermoscopic images with markings showing key features clearly illustrate each disorder. Differences in dermoscopic characteristics of fair skin and darker skin types are highlighted.