The hottest Hollywood accessory of the moment is just the right size to fit snugly in a Hermès Birkin bag or a Céline Luggage tote: a book.

 Once upon a time, Oprah Winfrey told America what to read. But 20 years after Oprah launched her wildly successful book club, a new generation of celebrities is using social media to share the books they love and help create best sellers.

 Reese Witherspoon, Lena Dunham, Emma Watson, Emma Roberts, Sarah Michelle Gellar and Kimberly Williams-Paisley are among the stars who use Instagram and Twitter to blast “book selfies” — cellphone snaps of the (usually physical) books they’re reading — accompanied by their own enthusiastic mini-reviews. (“#OpeningBelle is a smart, biting and honest peek into what it means to be a woman on Wall Street,” Witherspoon recently raved under the hashtag #RWBookClub.)
Witherspoon is the undisputed queen of the celebrity bookworm trend, but she’s not alone.  MORE