1. Introduction / Ashfaq A. Marghoob, Ralph P. Braun, and Josep Malvehy -- 2. Principles of dermoscopy and dermoscopic equipment / Steven Q. Wang, Ashfaq A. Marghoob, and Alon Scope -- 3. Histopathologic tissue correlations of dermoscopic structures / Ralph P. Braun, Alon Scope, Ashfaq A. Marghoob, Katrin Kerl, Harold S. Rabinovitz, and Josep Malvehy -- 4. Two-step algorithm : differentiating melanocytic from nonmelanocytic lesions / Ashfaq A. Marghoob and Ralph P. Braun -- 5. Nonmelanocytic lesions -- 6. Step 2 : methods to differentiate between melanoma and benign melanocytic nevi -- 7. Benign melanocytic lesions -- 8. Melanoma -- 9. Special locations -- 10. Exceptions to the two-step dermoscopy algorithm / Randie H. Kim, Natalia Jaimes-L�pez, Elizabeth A. Quigley, and Ashfaq A. Marghoob -- 11. Dermoscopy in general dermatology / Iris Zalaudek -- 12. Vascular structures / Ashfaq A. Marghoob and Tracey N. Liebman -- 13. Diagnostic accuracy of dermoscopy / Harald Kittler and Scott W. Menzies -- 14. Followup of melanocytic skin lesions with digital dermoscopy / Harald Kittler and Scott W. Menzies -- 15. Teledermoscopy and computer-assisted diagnosis / Dougal F. Coates and H. Peter Soyer -- 16. Beyond dermoscopy / Natalia Jaimes-L�pez and Allan C. Halpern -- 17. Concluding remarks / Ashfaq A. Marghoob and Natalia Jaimes-L�pez.