Assumption is wrong (Score 1)

It's not 828 ft of shelf space. Amazon description says, "the titles would tower 828 feet if you stacked them atop each other." They mean all of them standing vertically, one atop the other. Since those penguin classics are around 9 inches tall, that works out. Why you would measure books in this totally meaningless way? So that you can claim that they're "almost as tall as the Empire State Building" of course!