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Volunteers who work at the Friends of the Aurora Library Book Store chat amongst one another at the store. The store, which has been in operation for more than 30 years, sells used books and donates proceeds to the Aurora public libraries' collections -- more than $50 thousand was donated last year. AAron Ontiveroz, The Denver Post (Photo By AAron Ontiveroz/The Denver Post via Getty Images)

Volunteers who work at the Friends of the Aurora Library Book Store chat amongst one another at the store. The store, which has been in operation for more than 30 years, sells used books and donates proceeds to the Aurora public libraries' collections -- more than $50 thousand was donated last year. AAron Ontiveroz, The Denver Post  (Photo By AAron Ontiveroz/The Denver Post via Getty Images)