Having done the artwork and photographs for three books written by my brother, I can state that costings for specialised books are a bottomless pit and profit is your last thought - hoping to recoup ones initial outlay; eventually, is uppermost in the mind and in discussions with printers and binders etc. And in the context of Urban Exploration we have to examine Rebecca Lilith Bathory (Litchfield) contribution to urban photography and she is special, very special. Her grounding in fashion and modelling photography can be seen in her urban images, which have very tight compositions and spot on lighting. She takes photographs to produce images that are Works of Art in their own right, not just records of semi derelict rooms. Her books sell to lovers of art, devotees of photography, followers of urbex and actual explorers. I made good money out of my motorsport and yachting photographs, but my old urban photography is rubbish - just a record for me with no artistic merit what so ever. It's the 'art' form that sells images.