Exclusive: See Reese Witherspoon’s Adorable New Book Cover The actor, producer, and book-loving mom of three shares the cover for the second kids’ book, ‘Busy Betty & The Circus Surprise.’ By Sona Charaipotra If there’s anyone who knows busy, it’s Reese Witherspoon. The actor, producer, and mom of three is known for star turns in the movies you love to watch…