Methodology
Nielsen BookScan relies on point of sale data from a number of major book sellers. Nielsen BookScan's US Consumer Market Panel currently covers approximately 75% of retail sales and continues to grow. BookScan does not track sales from Wal-Mart/Sam's Club or BJ's; Hudson Group's airport and train and bus locations were added to their reporting panel effective week 1, 2009.
Read more about this topic: Nielsen Book Scan
Famous quotes containing the word methodology:
“One might get the impression that I recommend a new methodology which replaces induction by counterinduction and uses a multiplicity of theories, metaphysical views, fairy tales, instead of the customary pair theory/observation. This impression would certainly be mistaken. My intention is not to replace one set of general rules by another such set: my intention is rather to convince the reader that all methodologies, even the most obvious ones, have their limits.”
—Paul Feyerabend (1924–1994)