Topics include: Skin histology, physiology, and pathology, aging; Laser wavelength interface with the skin; Photography for skin's surface ; CO2 ablative lasers; YSGG ablative lasers; Erbium ablative lasers; Photodynamic therapy; Treatment of Acne Scarring; Treatment of Skin Texture and Fine Line Etching; Cutaneous facial vascular lesions; Treatment of hyperpigmentation; Treatment of facial hair and body hair; RadioFreqency: Ellman; RadioFrequency: Thermage; Infrared (Titan); SmartLifting; Lasers in Latino skin; Lasers in Black skin; Lasers in Asian skin; Complications in the use of laser skin technologies.