ok....a start;
Astromony/cosmology
Cosmos by Sagan
fabric of the Cosmos/Elegant Universe by Greene
Parrellel worlds by Kaku
The Birth of Time Gribbins
Physics
Flatland, by Edwin A. Abbott
Feynman's 6 Easy Pieces
Atom by Issac Asimov.
David Bohm's Wholeness and the Implicate Order
Deep Simplicity Gribbins
In Search of Schrodingers Cat Gribbins
Evolutionary biology
Shadows of Forgotten Ancestors by Sagan
Selfish Gene, River Out of Eden, Ancestor's Tale, Blind watchmaker by Dawkins
What does it mean to be 98% Chimpanzee by Jonathan Marks.
The Naked Ape and The Human Animal by Desmond Morris.
Stephen Jay Gould
Biology
Steve Jones: The Language of the Genes and Almost Like a Whale.
Brusca and Brusca's Invertebrates
The Song of the Dodo - David Quammen
The mismeasure of man Gould
Neuroscience
The Man Who Mistook His Wife for a Hat Sacks
Phantoms in the Brain VS Ramachandran
General medical
Awakenings - Sacks
The Boy who could not stop Washing - Rapopart
Flu - Kolata
Carol Ann Rinzler's Dictionary of Medical Folklore
Maths
The Lady Tasting Tea - Salsburg (Statistics)
Stewart Shapiro's Thinking About Mathematics
Chaos - James Gleick
Goedel, Escher and Bach by Hofstadter
Coincidences, Chaos, and all that Math Jazz by Edward Burger & Michael Starbird.
How To Lie With Statistics by Darrell Huff.
General Science/history of science
David C. Lindberg's The Beginnings of Western Science
Edward Grant's The Foundations of Modern Science in the Middle Ages
Bill Bryson's A Short History of Nearly Everthing
Grant & Olson's Science & Religion (Johns Hopkins UP 2004) in two volumes (From Aristotle to Copernicus and From Copernicus to Darwin)
The Day The Universe Changed by the incomparable James Burke.
Zero: The Biography of a Dangerous Idea - Charles Seife
Steven Shapin's The Scientific Revolution (U of Chicago P 1996)
Measuring America - Andro Linklater
Salt by Mark Kurlansky
The Omnivore's Dilemma by Michael Pollan
The Fellowship (History of science in the Royal society) Gribbins
David Quammen Monster of God: The Man-Eating Predator in the Jungles of History and the Mind.
Connections ??
Scepticism and science
Frauds, Myths and Mysteries: Science and Pseudoscience in Archaeology - Feder
Broca's Brain Sagan
anthroplogy/archeology
Guns, Germs and Steel by Diamond
The prehistory of the mind S Mithen
Psychology
The Happiness Hypothesis Haidt
Leftovers as i've had enough of categorising.....will do later
Demon Haunted World - Sagan
Dead Men do tell Tales - Maples
Nibbling on Einstein's Brain (Childrens) Sawnson
Pale Blue Dot - Sagan
Mauve - Garfield
Longitude - Sobel
Billions and Billions - Sagan
Sputnik - Dickson
Now this is only a rough draft - i've only read a fraction of these books, so please let me know if they need recategorising....the history of science/general science needs splitting - and we need some chemisty/geology/geography/computing!