A brand guideline is a document, usually developed by a business or a brand's marketing team, that identifies the core elements and norms of a brand and ensures that all brand-related activities and materials conform to those standards. Brand guidelines typically include the following: Brand Positioning: Determine the brand's core values, brand promise, and target consumers. Brand logo: Determine the design, color, font and other specifications of the brand logo, and provide relevant usage guidelines and specifications to ensure the consistency and integrity of the brand logo. Brand language: Determine the language style and tone of the brand, including tone, diction, vocabulary and grammar, to ensure that the language style of the brand is consistent and consistent with the brand image and positioning. Brand image: Determine the visual image of the brand, including brand advertising, publicity, packaging, product design, etc., to ensure that the brand image is consistent and in line with the brand image and positioning. Usage guidelines: including the usage methods and specifications of brand logos, brand language usage guidelines, brand image usage guidelines, etc., to ensure brand consistency and integrity.