I hope to build up a library of notes for you to refer to here:
- Grinding minerals (Azurite) to make pigment for painting with egg tempera. Link to a four page pdf for you to download grinding-azurite-for-painting-by-ronnie-cruwys.
- Membrane Technique Part One: Underpainting a face and application of the membrane on an icon face. Membrane technique part one underpainting and membrane