educational services, namely, conducting classes, seminars and workshops in the field of art, photography, business, investment, computers, technology, cooking, food, craft, hobbies, education, engineering, health, fitness, dieting, history, entertainment, languages, law, literature, math, medicine, music, parenting, politics, social science, religion, science, and sports; teaching, training, tutoring and courses of instruction at the undergraduate, graduate and post-graduate level; booking o...