Acrylic nails, Hard gel, Builder gel (BIAB), Gel overlays, Nail extensions, Gel polish, Russian manicure preparation, Spa pedicure, Nail art, Ombre, Chrome nails, 3D nail art, Encapsulation, Airbrush nail art, Nail sculpting, Cuticle care, Nail repair treatments, E-file use, Nail shaping, High-shine finishing, Client consultation, Time management, Client retention, Product recommendation, Sanitation and sterilization, Hygiene standards