What education and/or training do you have that relates to your work?
I have a membership to lynda.com
How did you get started doing this type of work?
I had a roomate years ago that got me into web design.
What types of customers have you worked with?
Mostly WordPress setup and training.
What advice would you give a customer looking to hire a provider in your area of work?
Ask them for a free or low cost demonstration fo their ability. Don't just go off the word of and emailed links to previous work.
What questions should customers think through before talking to professionals about their project?
I often build non-profit websites for %80 less than my average fee if they fill our Form 8283 Non Cash Charitable Givings Form. http://www.irs.gov/pub/irs-pdf/f8283.pdf