Joseph Barbier
Joseph is a data consultant and open source developer with his Yellow Sunflower company, and often works with David’s companies.
Driven by the accessibility requirements imposed by EAA and a large and active community of data scientists using R to directly publish data-centric reports, David and Joseph extended the open-source R ecosystem to add integrated support for PDF/UA-compliant publications.

Get in touch with Joseph Barbier!
E-mail: joseph@ysunflower.com
Joseph Barbier's Publications
Article July 30, 2026
Discover how R users can incorporate PDF accessibility checks into reproducible reporting workflows for more accessible documents.



