Seth Godin Linchpin: Are You Indispensable  (2011, Seth Godin)

Seth Godin is the author of more than a dozen bestsellers that have changed the way people think about marketing, leadership, and change, including Permission Marketing, Purple Cow, All Marketers Are Liars, Small is the New Big, The Dip, Tribes, Linchpin, and Poke the Box. He's an entrepreneur, the founder of several successful businesses, and a popular TED speaker. He writes one of the most influential business blogs in the world at sethgodin.com.