Delusions of Gender by Cordelia Fine

And on that subject I can't recommend
this book enough. And not least for the wonderful pun!

Other related posts:
Catherine Hakim is Soundly (and deservedly) Whipped by Zoe Williams - 31-08-2011 
Living Dolls the Return of Sexism - 21-08-2011
All Watched Over by Machines of Loving Grace - 02-06-2011
Some Art/Thought Provoking Statistics - 25-05-2011