Sandy Morris goes through piles of books on tables set up under tents on the North Lawn outside the library. The Denver Public Library is holding it's 36th Annual Gigantic Used Book Sale. Over 70,000 items from children's books, nonfiction and fiction boo [Getty Images]

Sandy Morris goes through piles of books on tables set up under tents on the North Lawn outside the library. The Denver Public Library is holding it's 36th Annual Gigantic Used Book Sale. Over 70,000 items from children's books, nonfiction and fiction books, along with CDs, DVDs and books on tape are available all at bargain prices starting at only $.50. New items will be added daily. The event is taking place on the North Lawn of the Central Library in downtown Denver at 14th and Broadway. The Public Sale Schedule is as follows: Friday, June 10: 10 a.m. - 4 p.m. Saturday, June 11: 10 a.m. - 4 p.m. Sunday, June 12: 10 a.m. - 1 p.m. Photo by Helen H. Richardson/The Denver Post (Photo By Helen H. Richardson/The Denver Post via Getty Images) — see more

Sandy Morris goes through piles of books on tables set up under tents on the North Lawn outside the library. The Denver Public Library is holding it's 36th Annual Gigantic Used Book Sale. Over 70,000 items from children's books, nonfiction and fiction books, along with CDs, DVDs and books on tape are available all at bargain prices starting at only $.50. New items will be added daily. The event is taking place on the North Lawn of the Central Library in downtown Denver at 14th and Broadway. The Public Sale Schedule is as follows: Friday, June 10: 10 a.m. - 4 p.m. Saturday, June 11: 10 a.m. - 4 p.m. Sunday, June 12: 10 a.m. - 1 p.m. Photo by Helen H. Richardson/The Denver Post (Photo By Helen H. Richardson/The Denver Post via Getty Images)