Author: Russell, Rachel Renee Brand: Simon & Schuster Ltd Author: Russell, Rachel Renee Brand: Simon & Schuster Ltd She's back! Nikki Maxwell returns for her 16th Dork Diaries adventure and has to deal with . . . a bratty younger sister. Join the jokes, the drama and the aDORKable BFFs in this mega-selling series with over 50 million copies in print worldwide!