Seth Godin's Startup School is a collection of talks given by Seth Godin, a renowned marketing expert, to aspiring entrepreneurs. The text excerpts focus on various aspects of starting and growing a business, such as building scarcity, overcoming fear, managing a dip in motivation, understanding customer needs, raising money, and building a strong brand. Godin emphasizes the importance of building connections with customers, focusing on specific niches, and finding a unique value proposition. He also explores the challenges of scaling a business, managing expectations, and maintaining a strong vision.