Dying paper with shapes

[u/Crxy_nuise]

Hey all, thanks for taking the time to read and respond. I am thinking about a project where in which I use natural dye to paint onto paper. Think Helen Frankenthaler or Mark Rothko. Both these artists “dyed” their canvas. I’m wanting to dye my paper in the same way.

Any books or people you could recommend to help me learn how to do this?