MARK THESE DATES

February 20: The Conference Board and Ketchum Public Relations Worldwide, "Proactive Employee Communications: Building an Atmosphere of Openness, Common Purpose, and Trust," San Francisco, 212/339-0345.

February 20: New York Women in Communications, "The Civility Defense: Winning Ways for the Workplace," New York, 212/661-4737.

February 20: Public Relations Society of America's Los Angeles Chapter, "How to Approach Editorial Boards for Coverage," L.A., 213/466-3445.

February 20-21: Effective Communications Group, "Advanced Writing & Interviewing Workshop," Boston, 201/444-3147.

February 21: Canadian Council for Public Affairs Advancement, "Workshop: Corporate Reputation: Realizing Value from the Corporate Image," Toronto, 416/675-6622(x3465) 416/675-6622(x3465)

February 21: The Conference Board and Ketchum Public Relations World Wide, "Organizational Effectiveness: Creating a Performance-Driven Corporate Culture With Communication," San Francisco, 212/339-0345.

February 23: The Center for Business Intelligence, "Strategies for Qualified Plan Success 2000 & Beyond," New York, 617/270-0911.

February 23-28: Columbia Business School, "Leading and Managing People," Harriman or Tarrytown,N.Y., 800/692-3932.