I have published extensively in different areas of photographic history over the years. There are too many different publications to list in full (and I have not kept a list of my publications as they have appeared). Some of the more notable publications include, in no particular order:
'Photographic manufacturing and the British patent system 1839-1910' in Anna Auer and Uwe Schögl, Jubilee-30 years ESHPh. Congress of Photography in Vienna, Vienna: Fotohof, 2008, pp.160-175.
'Photographic trade catalogues in Britain 1839-1916' in Photographica World, no.126 (April 2008), pp.36-44.