What’s the best “starter pack” for getting into feminism through books?

I feel like feminism is one of those topics everyone has opinions on, but I’ve never really sat down and explored it properly through books. I don’t want anything too academic or overwhelming to start, just something clear, engaging, and actually worth reading.

I’m open to classics, modern takes, essays, or even fiction that captures the ideas in a powerful way. Basically, if you had to give someone a small “starter pack” to understand feminism, what books would you include?