Muddy language can be costly
U.S. Federal agencies' plain language training and information website
Hogarth, Jeanne M., and Ellen A. Merry. "Designing Disclosures to Inform Consumer Financial Decisionmaking: Lessons Learned from Consumer Testing." Federal Reserve Bulletin, August 2011, vol. 97, no. 3, pp. 1-27.
"A Plain English Handbook: How to create clear SEC disclosure documents." U.S. Securities and Exchange Commission, August 1998.