The brief is the document that summarizes the key information and guidelines for your influencer marketing campaign. It should include a brief introduction about your brand, product, or service, and why you want to work with the influencer. Additionally, it should list your objectives, target audience, key messages for the campaign, deliverables such as type, format, number, and frequency of content that the influencer will create and share. Creative direction such as tone, style, theme, and call-to-action should also be outlined in the brief. Furthermore, it should detail the timeline with deadlines, milestones, and schedule for content creation and distribution. The budget should be specified including payment method, amount, and terms for the influencer. Lastly, legal aspects such as ownership rights and usage of the content, disclosure and compliance requirements, confidentiality and termination clauses should be included. It is important that the brief is clear, concise, consistent with your brand identity and values while leaving room for the influencer's creativity and input as they know their audience best.