Geek Heroines not only tells the stories of fictional and real women, but also explores how they represent changes in societal views of women, including women of color and the LGBTQ community. Geek culture stems from science and technology and so is frequently associated with science fiction. In the beginnings of science fiction, the genre was tied to "magic" and dystopic outcomes; however, as technology turned "geek" into "chic," geek culture extended to include comics, video games, board games, movie, books, and television. Geek culture now revolves around fictional characters about whom people are passionate. Geek Heroines seeks to encourage women and young girls in pursuing their passions by providing them with female role models in the form of diverse heroines within geek culture. Carefully curated to incorporate LGBTQ+ identities as well as racial diversity, the book defines geek culture, explains geek culture's sometimes problematic nature, and provides detailed fiction and nonfiction biographies that highlight women in this area. Entries include writers and directors as well as characters from comic books, science fiction, speculative fiction, television, movies, and video games.