People like Lisa Jenn Bigelow

Hazel's Theory of Evolution is a young adult fiction novel that Lisa Jenn Bigelow wrote. In 2019 HarperCollins published the book, which received the Lambda Literary Award in 2020.

The novel tells the story of Hazel, a thirteen-year-old girl who feels left behind by her best friend, Becca. One of her mothers is also pregnant again, but Hazel is not confident about having a new sibling, as her mother has suffered two miscarriages.

Kirkus Reviews praised the diversity present in the book's cast, even though the main character and her mothers are white. They also said that "[h]er first-person narration is insightful" and the main character is "highly likable." Publishers Weekly also praised the varied cast in Bigelow's book, as well as her "relatable first-person narrative", which the author uses to address universal conflicts.