Some examples of texts:

Technical and scientific:
Technical specifications, norms, system data, patents, test reports, software.

Legal and financial:
Annual reports, statutes, treaties, court verdicts.

Commercial and advertising:
Websites, contracts, folders and brochures, press releases, commercial correspondence, enquiries.

Editorial:
Guides, brochures, advertisements, publications, texts for websites, newsletters.

Sworn:
Birth-, marriage-, and death certificates, notarial acts, diplomas.

Other:
Personal correspondence and texts, CVs.

And of course on request.