- The document is a letter from the Chairman, President, and CEO of Merck & Co. inviting stockholders to the company's 2005 Annual Meeting of Stockholders. - The meeting will be held on April 26, 2005 to elect directors and vote on various proposals, including ratifying the appointment of the independent accounting firm and several stockholder proposals. - Stockholders are encouraged to vote by proxy, either by telephone, internet, mail, or in person at the meeting.