Ключевые слова: adult, books, business, call, caucasian, chat, class, coach, communication, conference, course, digital, digital study, distance, education, female, group, home, internet, knowledge, learning, lesson, male, meeting, men, mobile, mobile video class, modern, online, people, person, professional, remote, screen, senior, smartphone, students, study, teaching, team, technology, training, video, virtual, web, webinar, woman, work, workplace,