I Know Why the Caged Bird Sings is the 1969 autobiography about the early years of African-American writer and poet Maya Angelou. The first in a seven-volume series, it is a coming-of-age story that illustrates how strength of character and a love of literature can help overcome racism and trauma. The book begins when three-year-old Maya and her older brother are sent to Stamps, Arkansas, to live with their grandmother and ends when Maya becomes a mother at the age of 16. In the course of Caged Bird, Maya transforms from a victim of racism with an inferiority complex into a self-possessed, dignified young woman capable of responding to prejudice.

Angelou was challenged by her friend, author James Baldwin, and her editor, Robert Loomis, to write an autobiography that was also a piece of literature. Reviewers often categorize Caged Bird as autobiographical fiction because Angelou uses thematic development and other techniques common to fiction, but the prevailing critical view characterizes it as an autobiography, a genre she attempts to critique, change, and expand. The book covers topics common to autobiographies written by Black American women in the years following the civil rights movement: a celebration of Black motherhood; a critique of racism; the importance of family; and the quest for independence, personal dignity, and self-definition.

Angelou uses her autobiography to explore subjects such as identity, rape, racism, and literacy. She also writes in new ways about women's lives in a male-dominated society. Maya, the younger version of Angelou and the book's central character, has been called "a symbolic character for every black girl growing up in America".[1] Angelou's description of being raped as an eight-year-old child overwhelms the book, although it is presented briefly in the text. Rape is used as a metaphor for the suffering of her race.