by Else Marie Bjerregaard
Published Denmark 2003. ISBN 87-7847-069-2.
Soft cover, bit smaller than A4 (?quarto?) 80 pages, good quality glossy paper.
In English, with lots of clear coloured diagrams.
Mostly mats and mat edges, and most using a “star ground” which is clearly explained in the beginning of the book.
I bought mine from the Book Depository by mail order, post free, for under $20. A real bargain.