Based on our years of experience and some extra research, we came up with this stepbystep guide to writing stellar guest speaker invitations. 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). I am writing to ask whether you would be willing to present a talk at the conference as an invited speaker. Invited talks will be one hour long. I hope this letter finds you well. Begin with a Polite Greeting. I am enclosing Press Advisory, possible Press Release, and Public Service.