This novel follows the lives of four Londoners - Leah, Natalie, Felix, and Nathan - as they navigate adulthood in the diverse, vibrant, and sometimes volatile neighborhood where they grew up. The narrative explores themes of identity, class, friendship, and the complex nature of urban life, intertwining the characters' stories in a way that reflects the interconnectedness and fragmentation of city living.

The novel is a vibrant portrayal of the lives of twelve different characters, primarily black British women, spanning over a century. Each character has their own unique story, tackling issues such as feminism, politics, sexuality, and identity. The narrative is a blend of poetry and prose, exploring the interconnected lives of these women and their personal struggles and triumphs. It is a powerful exploration of race, gender, and the changing face of Britain.

In "Boy, Snow, Bird," a young woman named Boy Novak escapes her abusive father in New York City to settle in a small town in Massachusetts, where she marries a widower and becomes stepmother to his daughter, Snow. After giving birth to her own daughter, Bird, who is dark-skinned, it is revealed that her husband and stepdaughter are light-skinned African Americans passing as white. The book explores themes of identity, beauty, and the damaging effects of racism as Boy grapples with her feelings towards Snow and Bird, and the societal implications of their different skin tones.

The novel centers on a young Jamaican British woman living in London, navigating the complexities of her identity, mental health, and relationships. After a painful breakup with her long-term boyfriend, she finds herself in a downward spiral, struggling with her self-worth and the pressures of societal expectations. As she deals with workplace discrimination, problematic dating experiences, and familial issues, she embarks on a journey of self-discovery and healing, supported by a cast of well-drawn friends and family members. The story offers a candid and often humorous exploration of contemporary issues such as race, feminism, and mental health, while providing a nuanced portrayal of the protagonist's resilience and growth.