Claire Benn provides an unmatched performance in what may be the most comprehensive workshop on Procion MX Fiber Reactive Dyes.  Fiber Reactive Dyes are suitable for natural fibers (cotton, hemp, bamboo, etc.) and certain protein/animal fibers such as silk.

The industry standard for fabric dyeing for more than 80 years, fiber reactive dyes should be a part of your textile education and this workshop should be a part of your library.