I had been looking for an objective overview of Mormon polygamy for some time, as LDS missionaries rarely speak about it openly, so I was very pleased to find this book.
I am very surprised that Mormons consider this book offensive since it clearly reflects what is taught in LDS literature.
Joseph Smith's polygamy is a very well documented fact: he took over 30 wives, some of them already married, originally hiding this to his first wife Emma, and to the whole Church; one wonders why the LDS people are going great lengths to sugarcoat reality.
I f you have an interest in Mormonism, I would also suggest "No Man Knows My History", by Fawn Brodie.