From Blanding's Q & A at his publisher's website:
How many maps did Forbes Smiley steal?Visit Michael Blanding's website.
Smiley admitted to stealing 97 maps from six libraries—Harvard, Yale, New York Public Library, Boston Public Library, the British Library, and the Newberry Library in Chicago—worth over $3 million in all. However, the libraries accuse him of taking many more. In all, they are missing around 250 maps, and have evidence that he stole at least a dozen of them. The truth probably lies somewhere in the middle—but we may never know for sure exactly how many he stole.
How did he steal them?
In many cases, the maps were contained in rare books, and Smiley was able to go into a library and just rip them out or cut them out with a razor blade when no one was looking. In other cases, he would request a folder full of maps and just take one. Then, he folded them and put them in the pocket of his blazer and just walked right out. Library catalogs often don’t specify which exact maps should appear in which books or folders. So Smiley could rip out a map worth $100,000, and walk out without anyone knowing it was missing. Many of the map library curators knew him as a respected rare-map dealer and trusted him almost like a colleague; he abused that trust to walk out with rare maps right under their noses.
How could he ever sell these rare maps? Wouldn’t someone know they were stolen?
Maps...[read on]
The Page 99 Test: The Map Thief.
--Marshal Zeringue