41 Educational services, namely, providing classes, seminars, workshops, and training for plumbing, electrical, heating, ventilating, and air conditioning service providers, and distribution of training materials in connection therewith; Educational services, namely, providing classes, seminars, workshops, and training in the fields of marketing, sales, customer relations, customer lifecycle, customer experience, professional development, business, and management, and distribution of training materials in connection therewith; Educational services, namely, providing classes, seminars, workshops, and training in the fields of marketing, sales, customer relations, customer lifecycle, customer experience, professional development, business, and management for plumbing, electrical, heating, ventilating, and air conditioning service providers, and distribution of training materials in connection therewith