Polygamy

Polygamy (from Late Greek πολυγαμία, polygamía, “state of marriage to many spouses”) is the practice of marrying multiple spouses. When a man is married to more than one wife at a time, sociologists call this polygyny. When a woman is married to more than one husband at a time, it is called polyandry. If a marriage includes multiple husbands and wives, it can be called a group marriage.

See also Polyamory for non-fiction and Polyamorous for fiction.
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The 19th Wife
Escape
Stolen Innocence: My Story of Growing Up in a Polygamist Sect, Becoming a Teenage Bride, and Breaking Free of Warren Jeffs
Under the Banner of Heaven: A Story of Violent Faith
The Chosen One
Shattered Dreams: My Life as a Polygamist's Wife
His Favorite Wife: Trapped in Polygamy
The Sound of Gravel
Prophet's Prey: My Seven-Year Investigation into Warren Jeffs and the Fundamentalist Church of Latter-Day Saints
The Lonely Polygamist
The Secret Lives of Baba Segi's Wives
The Witness Wore Red: The 19th Wife Who Brought Polygamous Cult Leaders to Justice
Triumph: Life After the Cult--A Survivor's Lessons
Church of Lies
Lost Boy

Milan Kundera
Making love with a woman and sleeping with a woman are two separate passions, not merely different but opposite. Love does not make itself felt in the desire for copulation (a desire that extends to an infinite number of women) but in the desire for shared sleep (a desire limited to one woman).
Milan Kundera, The Unbearable Lightness of Being

As important and revolutionary as these things were, it was Joseph Smith's teachings on marriage that had a more visible and far-reaching effect on William Clayton's life than anything else he learned in Nauvoo. Two doctrines, “eternal marriage" and "plural marriage," went hand-in-hand, and Clayton learned of them during the last two years of his association with the prophet. Why would the straitlaced, idealistic William Clayton, who was almost overly concerned with what people thought of him, ...more
James B. Allen, Trials of Discipleship: The Story of William Clayton, a Mormon Pioneer

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