Ключевые слова: 2020, 2021, analysis, background, business, calendar, career, celebrate, celebration, challenge, change, christmas, communication, concept, date, day, december, education, enjoy, future, goal, greeting, growth, happy, holiday, idea, ideas, january, job, marketing, motivation, new, new year, online, partnership, party, plan, professional, sign, smart, start, strategy, success, symbol, travel, vacation, vision, work, working, year,