Edit: I am still keeping my original review down below, but noticing that I did rate this book, I feel the need to add some things since I do not condone this author. While this might be good for people starting at square one to learn about feminism, Adichie has made it abundantly clear (to the point of smearing specific trans authors) that her feminism is not inclusive of trans people (and actively harmful towards them). There are other authors with more nuanced primers that have works that are available. 

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I'm unsure of a star rating for this work. As an introduction for people who do not know much about feminism, I would say 4/4.5. It has a really important perspective from someone who is Nigerian and goes between countries. But as someone who isn't coming in without any other experience, it seems to be missing some things, which makes me want to rate it 3 stars. I took issue with the fact that some of what she says does not consider trans and nonbinary people at all. She also gives an awful lot of credit to men who are doing the bare minimum. I split the difference and put it at 4 stars.