Butler, R., Cowan, B., & Nilsson, S. (2005) discuss the effect of Oprah's book club on selected books' performance on the best seller list after being selected. The study took at look at how well books did after Oprah selected books for her book club in the three months following her selection. Butler et al. discovered that all books ended up on the top 150 best seller list for several week after selection. How do these celebrity book clubs influence readers' advisory? I remember working in the library when Oprah would select a book. Several people would call the same day wanting to find that particular book. Unfortunately the library's supply was always much lower than the demand. This left readers wanting something that they could not get. Back then I had no idea about readers' advisory. I just shelved books and occasionally pointed out the non-fiction area or the children's books. Today I know that celebrity book clubs have boosted the need readers...