Knock Knock Lines for All Occasions, Tweets and Status Updates Knock Knock's Tweets and Status Updates has hundreds to choose from With this book, your virtual musings are sure to be instantly, effortlessly witty - and endlessly re-tweetable Chapters range from 'Interpersonal Posts' to 'Cultural Comments' Makes a fun gift for a co-worker, friend, or loved one, whether they're a social media novice or an online networking guru Cloth cover with gold stamping; 3.5 x 5.75 inches; 112 pages