This short book is a survey course oriented to college (and perhaps senior high school) students to introduce them to the major topics of science fiction. It does not document lengthy lists of books, but rather discusses the broad themes that SF is taking up. As the author puts it, she is not so much interested in what SF has been, as in what it can do: the focus it puts on contemporary issues and speculation as to how we can work to improve things.
The book's chapters feature seven main topics that SF has persistently dealt with: utopianism, futurology, colonialism, robots & AI, genomics, environmental change, and economics. That last topic may be a surprise, but a number of SF books have looked at how economies operate and how monetary systems are managed.
This topic-based focus provides a good overview of the changing nature of SF through the decades, and includes examples of fiction that are quite contemporary. (The most recent reference dates from 2019.)
The book's academic focus is made plain by the author's use of unusual words that she often does not define, but which need explanation to a student reader. For instance, do you know what 'constitutive' means? It's not defined but must be understood within the context of the text. Also, the list of further reading is weighted heavily towards academic analysis of science fiction and technological and sociological topics. For the names of SF fiction titles, a reader must peruse the text for examples related to the author's discussion of a theme. An improvement would have been a short list at the end of each chapter that cites fiction titles to illustrate the chapter's theme.