Here is a list of books from which course materials have been drawn and provide further reading beyond the topics covered. Many books are available in local libraries.
Abbott E.A., Flatland, A Romance in Many Dimensions (many editions available but full text also on the web here)
du Sautoy, M. (2010), The Number My5teries, London: Harper Collins
Gardner, M. (1979), Mathematical Carnival, Middlesex: Penguin Books Ltd
(out of print but second hand copies available on Amazon)
Gardner, M. (1971), Mathematical Puzzles and Diversions, Middlesex: Penguin Books Ltd
(out of print but second hand copies available on Amazon)
Gjerde, E. (2009), Origami Tessellations, CRC Press
Kasner, E. and Newman, J. (1968) Mathematics and the Imagination, Penguin Books
Levy, J. (2013), A Curious History of Mathematics, London: Carlton Publishing Group
Northrop, E. P., (1967), Riddles in Mathematics, London: Penguin Books Ltd
(cheapest second hand from Amazon – 1p!)
Pappas, T. (2012), The Joy of Mathematics, San Carlos CA: World Wide Publishing
(Not got the best reviews, but it has got the same name as this course!)
Seife, C. (2000), Zero, The Biography of a Dangerous Idea, London: Souvenir Press Ltd
Stewart, I. (2008), Professor Stewart’s Cabinet of Mathematical Curiosities, London: Profile Books Ltd
Strogatz, S. (2013), The Joy of X, New York: Atlantic Books
Wilson, R. (2008), Lewis Carrol in Numberland, His Fantastical Mathematical Logical Life, London: Penguin Books