What advice would you give a customer looking to hire a provider in your area of work?
Take one of my classes to see what marketing is about and to see how I think.
What questions should customers think through before talking to professionals about their project?
That marketing involves not just promotions, but product development, pricing and distribution. If you have the right product-market fit, whatever you do to promote will be much more effective. There's no point marketing a product that has little chance of selling.