Probably my favorite technique is to write on a page with sharpie, it can either be previously gesso coated, acrylic painted or raw paper. It doesn't matter. After that you go over the sharpie wriitng with gesso. As the gesso dries part of the sharpie writen text is visible through the gesso. It lifts into teh gesso and is slightly purple. It works with red sharpie as well, and several other colors that I've tried. It works with the liquitex gesso I use as well as the clear. Sharpie will also lift into heavy body acrylic paint. You can then write over the gesso or treat just link a gesso coated page. I like to then add more layers over the top of the writing.
Here I used a page I had coated in liquid acrylic and gesso and stamped some random round shaped onto. I wrote ontop of that with a standard fine tip sharpie.
This is still partially wet, as the gesso dries more the purple will lift into it more. I was too impatient to take a pic of it fully dry. I ended up adding more to the image before I could ge another pic.