Does God Hate Women?
Interesting book, in that while it's written by two atheists and has a few references to a lack of god, it can be read as a 'how to be a religion and not be a dick' guide. It highlights that religion almost certainly isn't the original cause of generalised misogyny, but is a great perpetuator of it in current times - and that rigid adherence to doctrines that were made in different times and different places is the main thing driving this. A good, if depressing, read.