PIERRE, S.D. (AP) — Two books published by the South Dakota State Historical Society have won independent publishing awards.

State officials say two books published last year have won Independent Publisher Book Awards, or IPPY Awards.

"Transformation and Continuity in Lakota Culture: The Collages of Arthur Amiotte, 1988-2014" won the national Gold Award in the Fine Art category.

"Love Letters from Mount Rushmore: The Story of a Marriage, a Monument, and a Moment in History" received the Mid-West Gold Award for Best Regional Non-Fiction.

The historical society says the IPPY Awards are recognized by the publishing industry as the world's largest book-awards contest. Judges have between 10 and 20 years of experience in critiquing books, and fewer than one in 10 entries win an IPPY medal.

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