Does anyone here create written interpretive materials for visitor centers, roadside exhibits, etc?

I am curious if anyone here is involved with creating written interpretive materials like signs, exhibits, brochures, maps, etc. Do you work for a government agency or a private firm? Is it the main part of your job, or just one of many things? Are you assigned to a specific area or not? What educational and professional background led you into this line of work?

Even if you don’t personally work in interpretation, if you have been involved or know anything out it I would l look I’ve to hear your experiences.