Define Brand Voice: Determine the tone and personality of your brand. Is it formal, casual, or somewhere in between? Establish Visual Elements: Specify the colors, fonts, and images to be used in emails. Set Formatting Rules: Decide on the structure of the email, including headings, subheadings, and paragraphs. Template Usage: Create templates to ensure uniformity in design and layout. Content Guidelines: Provide rules for grammar, punctuation, and style to ensure consistency.