Histology is the gold standard for melanoma diagnosis, but excising all suspicious lesions is costly. Imaging methods like RCM and LC-OCT are less invasive but expensive, limiting their use. Dermoscopy, however, is affordable and effective, improving diagnosis while reducing unnecessary excisions. This lecture uses images to teach key dermoscopic features of melanocytic lesions and melanoma, covering common pitfalls and special areas like the face and mucosae.