The Interesting Narrative is the autobiography of a man born, by his account, around 1745 in the Eboe province of the region he calls Guinea. He begins not with himself but with his country: its customs, marriages, agriculture, justice, and religion. This opening establishes that the people later carried off into slavery had an ordered and industrious life of their own.
While the adults are away at work, Equiano and his sister are seized from their home by kidnappers and carried off. After being passed from hand to hand across Africa and briefly reunited with and then separated from his sister, he is brought to the coast and put aboard a slave ship bound for the West Indies. His account of the Middle Passage describes the crowding, the pestilential stench of the hold, the chains, the floggings, and the shrieks of the dying.
Sold first in Barbados and then in Virginia, he is bought by a naval officer who renames him Gustavus Vassa and takes him to England and to sea during war. He learns to read, is baptized, and serves through campaigns, but is sold again rather than freed. Under his next owner, the Quaker merchant Robert King in Montserrat, he is allowed to trade small goods on his own account and slowly saves toward the price of his liberty.
In 1766 King keeps his promise and lets Equiano buy his manumission for seventy pounds. Equiano reproduces the manumission document in full, noting how its language of dominion exposes the absolute power one man claimed over another. As a free man he continues to work at sea, travels widely, and survives shipwreck and hardship, but he never loses sight of the millions still enslaved.
The later chapters turn outward into argument. Equiano addresses nominal Christians who break the golden rule, attacks the trade as a war upon the human heart, and contends that abolition would serve commerce as well as justice by opening Africa to honest trade. The narrative closes with his petitions to Parliament and to the Queen on behalf of his African countrymen, fusing personal testimony with public appeal.