3.1 Formal Invitations. Use the formats below for formal invitations and follow these rules of thumb.Complete the form below. Let us know your area of expertise, and of any specific topics you are passionate about. Be sure to include: a) Complete information on date, time, and place;. On behalf of the XYZ and the XYZ Organizing Committee, we are honored to invite you to speak at the XYZ event celebrating Cybersecurity Career Week (CCW). Registration now is open for EMNLP. When you register for the conference, you will receive an automatically generated visa invitation letter.