The Science of Discworld III : Darwin's Watch, by Terry Pratchett.
Who's Afraid of a Large Black Man?, by Charles Barkley.
The Rescue Artist : a True Story of Art, Thieves, and the Hunt for a Missing Masterpiece, by Edward Dolnick.
Mummy : the Inside Story, by John H. Taylor.
Happiness : the Science Behind Your Smile, by Daniel Nettle.
Reef Madness : Charles Darwin, Alexander Agassiz, and the Meaning of Coral, by David Dobbs.
Design in the USA, by Jeffrey L. Meikle.
The Velvet Rage : Overcoming the Pain of Growing Up Gay in a Straight Man's World, by Alan Downs.
Beauty & Art, by Elizabeth Prettejohn.
The Grand Tour : a Traveler's Guide to the Solar System, by Ron Miller and William K. Hartmann.
Overcoming Animal & Insect Phobias : How to Conquer Fear of Dogs, Snakes, Rodents, Bees, Spiders & More, by Martin M. Antony and Randi E. McCabe.
Clothing as Material Culture, edited by Susanne Kuchler and Daniel Miller.
The Pope's Daughter : the Extraordinary Life of Felice della Rovere, by Caroline P. Murphy.
We'll Always Have Paris : Sex and Love in the City of Light, by John Baxter.
The Peoples of the Great North : Art and Civilisation of Siberia, by Valentina Gorbatcheva and Marina Federova.
Cleopatra of Egypt : From History to Myth, edited by Susan Walker and Peter Higgs.
Winter, by Pierre Berton.
The Only Investment Guide You'll Ever Need, Andrew Tobias. This one has been added to the list because of its rarity ... it's the first popular investment book I've ever seen that does NOT promise to make you a millionaire. :p