Oprah's Book Club is a book discussion club segment of the American talk show The Oprah Winfrey Show, highlighting books chosen by Oprah Winfrey. Winfrey started the book club in 1996, selecting a new novel for viewers to read and discuss each month. Because of the book club's wide popularity, many obscure titles have become very popular bestsellers, increasing sales; this occurrence is widely known as the Oprah effect __