An important, thoroughly researched, and engaging book that takes on one of the most important branches of genre fiction and looks at how this genre, science fiction, has historically handled race and race-like issues (e.g. the treatment of post-humans like androids, cyborgs, and robots). If you've ever wanted one book that assembled a vast array of book reviews, science fiction critics, and writers on the subject of race then this is the resource I'd recommend.