American interest in the Kennedy family never seems to fade: from best-selling biographies to ill-fated mini-series, we seem to be perennially obsessed with Camelot.

Six new books covering several branches of the Kennedy family tree aim to sate that interest. Two books document the life of Rosemary Kennedy, daughter of Joseph and Rose, who underwent a lobotomy when that operation was still common practice. Robert F. Kennedy, Jr., and Ted Kennedy each get the biography treatment, and Ted’s son, Patrick J. Kennedy, has written a memoir about his experience with addiction and mental illness. And another book focuses on the most famous Kennedy of all, JFK, and his experience on the motor torpedo boat PT-109, which made him a war hero.

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