Final answer:
The two most common forms of skin cancer are basal cell carcinoma and squamous cell carcinoma, both having high cure rates if detected and treated early.
Step-by-step explanation:
The two most common forms of skin cancer are basal cell carcinoma and squamous cell carcinoma. Basal cell carcinoma occurs in the basal cells of the epidermis and is the most common type of skin cancer. It rarely metastasizes, making it generally curable with early detection and treatment such as biopsy or surgery. On the other hand, squamous cell carcinoma occurs in the squamous cells of the epidermis and is the second most common type of skin cancer. It has a slightly higher likelihood to metastasize than basal cell carcinoma but is still often localized and usually curable with surgical intervention.