Society of Scribes and Illuminators:
www.calligraphyonline.org 

Calligraphy and Lettering Arts Society:
www.clas.co.uk   

Letter Exchange:
www.letterexchange.org 

Crafts Council:
www.craftscouncil.org.uk 

Crafts Study Centre:
csc.uca.ac.uk

Tom Bree Geometer:
www.tombreegeometry.com