Provide a clear example of a similar job you have done in the past.
I have created similar marketing packages for many clients. One example is the work I did for Opallios. I created a brochure, case studies, updated text on other marketing collateral, and provided a sales script. You can see some in my portfolio.
Proposal:
I have 20 years of experience in marketing, communications, and sales, working with clients across a variety of industries. My career includes 15 years of marketing management roles at Fortune 100 companies, and consulting engagements with companies of all sizes, including producing marketing content such as brochures, proposals, etc. I specialize in helping my clients properly position and market their product or service offerings to maximize business value, communicating that in a clear, concise way.
I am confident I will be able to successfully deliver to your project requirements. For this proposal I can deliver a marketing package that will include a brochure (or similar piece of collateral) and proposal. Please let me know if you have any questions about my proposal.
Joanna Lees