Libraries know that a big fraction of their book collections never circulate, even once. The flip side of this fact is that a small fraction of a library's collection accounts for most of the circulation. This is often referred to as Zipf's law; as a physicist I prefer to think of it as another manifestation of log-normal statistics resulting a preferential attachment mechanism for reading. (English translation: "word-of-mouth".)| Go To Hellman
"Kale emerging from a slush pile" | Go To Hellman
Can a book be more valuable if it's free? How valuable? To whom? How do we unlock this value?| Go To Hellman