Books
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DARK DAYS
John Kelly reads from his new book “The Great Mortality” (Harper-Collins), a popular history about the causes and effects of the Black Plague in the Medieval world. Tayt Harlin wrote in The New York Sun that Mr. Kelly “provides a palpable account of the horrors and anomie the plague produced.” Friday, 7 p.m., Barnes & Noble Astor Place, 4 Astor Place at Broadway, 212-420-1322, free.
DANCE DEVOTION
Janet Roseman discusses her book “Dance Was Her Religion: The Spiritual Choreography of Isadora Duncan, Ruth St. Denis, and Martha Graham” (Hohm). The artistic director of Martha Graham Resources, Janet Eilber, joins her. Friday, 7 p.m., Barnes & Noble Lincoln Triangle, 1972 Broadway at 66th Street, 212-595-6859, free.
FOR GEORGE The widow of the Beatles’ George Harrison, Olivia Harrison, signs the $540 limited-edition tribute book “The Concert for George.” Saturday, 12:30 p.m., Barnes & Noble Union Square, 33 E. 17th St. at Broadway, 212-253-0810, free.
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