Merde: Excursions in Scientific, Cultural, and Socio-Historical Coprology, by Ralph A. Lewin (Professor Emeritus of Marine Biology, Scripps Institution of Oceanography, University of California, San Diego) (Random House, 1999).    Read an excerpt here. See also: More on Merde (Perspectives in Biology and Medicine, 2001)

Toilets of the World, by Morna Gregory & Sian James (Merrell, 2006)

Taking the Piss: A Potted History of Pee, by Adam Hart-Davis & Emily Troscianko (Chalford Press, 2006)

Outhouses, by Roger Welsh (Motorbooks International, 2003)

Ceramic Water Closets, by Munroe Blair (Shire Publications, 2000)

Up Shit Creek: A Collection of Horrifying True Wilderness Toilet Misadventures, by Joe Lindsay (Ten Speed Press, 1997)

How to Shit in the Woods: An Environmentally Sound Approach to a Lost Art, by Kathleen Meyer (Ten Speed Press, revised ed., 1994)

Thunder, Flush and Thomas Crapper: An Encycloopedia, by Adam Hart-Davis (Michael O’Mara Books, 1997) [out of print: the link is to Amazon]

          Temples of Convenience & Chambers of Delight, by Lucinda Lambton (History Press, 2007) [the
          link is to Amazon.co.uk]

Audio slideshow: Tales from the toilet (BBC Radio 4, 2009) − “Public conveniences of old may have been porcelain palaces - but by the mid 20th century, that glamour had given way to municipal functionality.”

Loo with a View (Virgin Books, 2008) − see also: Loo with a view: The world's toilets with the best vistas (Daily Mail, 2008)

Three classics:

Dinkum Dunnies by Douglass Baglin & Barbara Mullins (Eclipse Books, 1971; Ure Smith 1975−85) ISBN: 0-7254-0377-2 What’s a dunny? Answer here. Out of print − do a search on Google.com.au for a second-hand copy.

The Specialist by Charles Sale (Putnam & Co., 1930) The Master Builder by Charles Sale (Putnam & Co., 1932) Out of print − do a search on Amazon.com or Amazon.co.uk for a second-hand copy.