Reading List · Lisanne Swart
Best Books About Sisters
No other relationship gets written about with quite this much honesty. Friendships can end. Marriages can end. A sister relationship almost never fully does, even when it should, even when one sister has done something the other cannot forgive — and that permanence is exactly what makes it such rich material for a writer. The seven books below move across genres and centuries: a nineteenth-century classic about four sisters growing into four different women, a gothic novel about two sisters protecting each other against an entire town, a pitch-black comic novel about a sister who keeps killing her boyfriends and the sister who keeps cleaning up after her, a group biography of six of the most extraordinary and most divided sisters in twentieth-century history, a wartime novel about two French sisters who choose resistance in completely different ways, one of the most important sister relationships in American fiction, and a memoir that traces six generations of women bound together by blood, marriage, and survival. What they share is an unwillingness to simplify the bond. Sisters in these books love each other and resent each other in the same paragraph, and the books are better for refusing to pick one feeling and call it the truth.
By Lisanne Swart · 7 books · Fiction & Nonfiction · Updated June 2026
Little Women
Meg, Jo, Beth, and Amy March grow up in genteel poverty in Civil War-era Massachusetts while their father is away serving as a chaplain, and the novel follows the four sisters from adolescence into early adulthood as each one discovers what kind of woman she will actually become — not what her family or her century expects, but what she is. Jo wants to write and refuses the marriage plot the era hands her; Beth is gentle to the point of self-erasure; Amy is vain and ambitious and eventually wiser than anyone gave her credit for; Meg wants an ordinary domestic happiness and gets to have it without the novel treating that as a lesser choice. Alcott drew directly on her own family and her own sisters. The novel has never gone out of print since its publication.
Little Women endures because Alcott refuses to rank her sisters against each other, even though the book’s own readers have been doing exactly that for over a century. Each March sister gets a complete, unmocked interior life, and their disagreements — about ambition, about marriage, about what a woman is allowed to want — are taken as seriously as anything in nineteenth-century fiction about men. Jo’s refusal of Laurie remains one of the most quietly radical moments in American literature: a heroine choosing her work over the romance the genre has trained readers to expect. Read it as the book that effectively invented the sister novel as a genre.
We Have Always Lived in the Castle
Merricat and Constance Blackwood live alone in their family’s large house, shunned by the rest of their small village, six years after the rest of their family died of arsenic poisoning at the dinner table — a crime for which Constance was tried and acquitted, and which the eighteen-year-old Merricat narrates around without ever quite explaining. Constance keeps house and gardens and almost never leaves the property; Merricat performs small private rituals of protective magic to keep their fragile world intact. Their cousin Charles arrives partway through the novel with obvious designs on the family fortune, and his presence threatens the precarious, self-contained universe the sisters have built for themselves out of grief, guilt, and absolute mutual loyalty.
We Have Always Lived in the Castle is the strangest and most perfectly controlled novel on this list, and its central relationship is one of total, unconditional devotion that exists entirely outside ordinary social judgment. Merricat’s loyalty to Constance is not undermined by what the reader gradually understands about what actually happened at that dinner table; if anything, the novel asks whether unconditional sisterly loyalty might be the one form of love that doesn’t require innocence to survive. Jackson’s prose is precise and eerily calm even as the events it describes become more disturbing. This is one of the finest American gothic novels of the twentieth century.
My Sister, the Serial Killer
Korede is a meticulous, overlooked nurse in Lagos whose younger sister Ayoola is beautiful, charming, and has now killed three boyfriends in what she insists, every time, was self-defense. Korede is always the one who arrives with bleach and a plan, cleaning up scenes and disposing of evidence out of a loyalty she resents but cannot seem to override, even as the bodies accumulate and even as Ayoola starts dating the doctor Korede has quietly loved for years. The novel moves fast, in short chapters, with a flat comic tone that makes the violence feel almost domestic — just another chore Korede has to manage on top of her actual job.
My Sister, the Serial Killer is the funniest and most uncomfortable book on this list, and its real subject is not murder but the specific, lifelong imbalance between a responsible older sister and a charismatic younger one who has never had to face a consequence in her life. Korede’s resentment of Ayoola is constant and genuinely felt, but so is her loyalty, and Braithwaite never lets the reader settle into thinking one sister is simply right and the other simply wrong. The novel asks, underneath its dark comedy, the question every sister has asked at some point: at what point does protecting someone become a kind of self-erasure?
The Sisters: The Saga of the Mitford Family
Six sisters born into the English aristocracy between 1904 and 1920, who went on to take the twentieth century in six completely different and often opposing directions: Nancy became one of the best-selling novelists of her era; Pamela retreated into a quiet country life; Diana married the British fascist leader Oswald Mosley; Unity became a close personal friend of Hitler and shot herself when Britain declared war on Germany; Jessica became a committed Communist and ran away to fight in the Spanish Civil War; Deborah became the Duchess of Devonshire. Lovell traces how six daughters of the same parents, raised in the same nursery, ended up on opposite sides of the central ideological conflict of their century — and somehow, mostly, remained sisters anyway.
The Sisters is the book on this list that most directly tests how far the sister bond can stretch before it actually breaks — and the answer, with the Mitfords, is further than seems reasonable. Diana and Jessica were on literally opposing sides of the Second World War, one married to a fascist, the other a committed anti-fascist, and the family correspondence Lovell draws on shows both genuine rupture and a stubborn refusal to fully let go of each other. Lovell’s evenhanded approach lets each sister’s choices stand on their own without editorializing, which makes the book’s central question — what survives when everything else about a family disagrees — land with real force.
The Nightingale
Vianne and Isabelle Rossignol are sisters in occupied France during the Second World War, and the novel follows the radically different paths each one takes through the occupation: Vianne, the elder, tries to protect her daughter and survive in her small village while a German officer is billeted in her own house; Isabelle, younger and far bolder, joins the Resistance and eventually leads downed Allied airmen across the Pyrenees to safety in Spain, an operation based on real history. The sisters have never been close in the conventional sense — their relationship before the war was strained by their mother’s death and their father’s emotional absence — and the occupation forces both of them into forms of courage neither expected of herself or of the other.
The Nightingale earns its place on this list by using two sisters to dramatise two entirely different and equally legitimate definitions of bravery during wartime: the quiet, daily courage of protecting a child and a household under occupation, and the dramatic, visible courage of active resistance. Hannah refuses to rank the two; both come at devastating cost, and the novel’s structure, alternating between the sisters, ensures neither version of heroism is allowed to overshadow the other. The novel is also, underneath the war story, about two sisters finally understanding each other only once they have both been changed by something larger than their old grievances.
The Color Purple
Celie is a poor Black woman in rural Georgia in the early twentieth century, writing letters first to God and later to her sister Nettie, from whom she has been violently separated by the abusive men who control both their lives. The two sisters spend decades apart, each surviving in radically different circumstances — Celie trapped in an abusive marriage, Nettie eventually working as a missionary in Africa — and the novel’s epistolary structure means the reader experiences their separation as a long, sustained ache that the narrative refuses to resolve quickly. Their eventual reunion, after the letters Nettie sent for years are discovered to have been deliberately hidden, is one of the most emotionally earned moments in twentieth-century American fiction.
The Color Purple uses the sister bond between Celie and Nettie as the emotional center that survives every other form of violence and erasure the novel depicts. The two women are kept apart for most of the book, which is itself the point: Walker shows how systems of abuse and control work specifically by severing women from each other, and how the sister relationship, even when reduced to unsent letters, remains the thing Celie holds onto to survive. The eventual reunion is not sentimental; it is the novel’s argument made visible, that love between sisters can outlast even decades of deliberate, engineered separation.
In the Country of Women
Straight, a white woman who married into a large, multiracial family in Riverside, California, traces six generations of the women on both sides of her family — her own Swiss-German ancestors and her husband’s African American, Indigenous, and Creole relatives — writing the book as a gift to her three daughters so they would know the women who came before them. The memoir moves through sisters, mothers, aunts, and the in-law relationships that function like sisterhood across generations, tracing how women in her family escaped violence, survived Jim Crow, fled abusive men, and kept moving west across the country in search of something safer. Straight studied under James Baldwin and brings his influence to the book’s lyric, unflinching prose.
In the Country of Women earns its place on this list by widening what “sisters” can mean — not only biological siblings, but the entire web of women who function as sisters to each other across generations, race, and circumstance. Straight’s six-generation scope means the book is never sentimental about what these women endured; the violence, the poverty, and the racism are rendered with full clarity. What survives all of it is the specific, durable solidarity between women who chose to call each other family, whether or not they were related by blood. It is one of the most expansive books ever written about what sisterhood, broadly understood, actually requires.
Where to start
If you want the book that essentially invented this genre
→ Read Little Women. Four sisters, four completely different paths, and a refusal to rank them against each other that still feels ahead of its time more than 150 years later.
If you want the darkest, funniest version of sisterly loyalty
→ Read My Sister, the Serial Killer. A fast, pitch-black comic novel about the exhausting, lifelong imbalance between the sister who cleans up and the sister who never has to.
If you want to see how far the bond can stretch before it breaks
→ Read The Sisters. Six aristocratic English sisters ended up on opposite sides of fascism, communism, and the Second World War, and somehow, mostly, remained sisters anyway.
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From the bookshelf
“She is my sister and I love her, but somebody has to teach her how to wash a man's blood off the bathroom tiles.” — Oyinkan Braithwaite, My Sister, the Serial Killer
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