Peter Butt is a professor of law with almost 30 years' experience of teaching and legal practice. Peter holds a Bachelor of Arts, Bachelor of Laws, Master of Laws and Doctor of Laws from the University of Sydney. He is admitted as a legal practitioner (Australia) and is an honorary member of the Inner Temple (UK).

Peter was a founding director of the Centre for Plain Legal Language at the University of Sydney. He lectures to lawyers and students in legal drafting. He has given seminars on the techniques of plain language in the United States, Canada, Hong Kong, China, Malta, the United Kingdom, Ireland and Australia. His clients include many leading law firms and important government bodies. He writes a monthly column for the Australian Law Journal.

In 2009, Peter was awarded a Lifetime Achievement Award by the Plain Language International Network (PLAIN) for his pioneering efforts in plain legal language.