"To visualize how many items 45.5 million is, imagine a bookshelf that stretches from Columbus to Portland, Maine. That would be 878 miles of shelf space, just twenty miles short of the amount needed to accommodate all 45.5 million items.*"
"*Using an average book width of 1.25 inches, 45.5 million books lined up side-by-side on a bookshelf would cover a distance of 898 miles. The distance from Columbus, Ohio to Portland, Maine is 878 miles according to MapQuest.com"
To learn more about this milestone read What's New: Now Providing 10 Million Unique Titles, and the OhioLINK press release Ohio Academic Libraries Now Provide 10 Million Unique Titles.