"At a time when book discovery is challenging because of the amount of content clamoring for attention, celebrity book clubs are playing an important role in spurring sales for listed titles. According to global information company The NPD Group, the volume of the sales bump varies with the celebrity’s level of popularity, but having a book selected by a celebrity reader with a big following can result in a huge increase exposure and sales."
Using celebrities is a time-tested method of promoting products and services. One study estimates that celebrities show up in at least 15% of advertising. But in this age of social media and brand evangelists, does celebrity advertising still work? The results of a recent analysis suggest that successful outcomes may be all about which celebrity is used.