London, Zwemmer Gallery, 1967.
Quarto, 24,  (five lines printed at the head of the recto of the rear flyleaf) pages with 17 illustrations (8 in colour).
Colour-pictorial laminated papered boards lightly rubbed at the head and foot of the spine; first few leaves very slightly creased; an excellent copy.
Number 176 of 300 copies numbered, dated (London, 1967) and signed by the artist. The technique of sfumato ('the use of carbon from a naked candle flame or from an oil lamp as an aid to painting') is discussed in the book in an article by Sheldon Williams (pages 11-14).