An informative primer on gender and the trap of relying on outward appearance or chromosomal make-up. People with a standing interest and knowledge base in gender studies and the complexities of gender may wish for more depth, however this is a fantastic book for readers new to the idea that XX and...
From what Julie wrote in her review at Feministe, it takes an "us" versus "them" route, and is pretty basic. I'll give it a pass. I already know that sex and gender exist on a continuum, and are not binary.