We'll detail everything you need to know about how to invite a guest speaker, from the earliest planning stages to drafting a formal speaker invitation letter. 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).Write your request that she or he appear, giving the date, time, type of event event, and the name of the group you hope they will visit. Your invitation should be a formal email (or letter). Outline the reasons why you've chosen them as the best person to speak at your event. We are excited to invite you to join us as a featured speaker at this event. Based on our years of experience and some extra research, we came up with this stepbystep guide to writing stellar guest speaker invitations. Do you want to create and send a creative invitation letter? More from the Governor's Office.