A Division of Brothers. Sins of the Tribe , by first-time author Mark Salter, explores the impact of intense tribalism and its resulting dehumanization through a popular and wildly flawed source: college football. Sins of the Tribe explores the dark side of tribalism and themes such as greed, jealousy, and the complexities of brotherhood. Publisher: Greenleaf Book Group LLC Author(s): Mark A Salter Number of pages: 424 Publication date: 2022 Dimensions: 160 x 237 x 37 Cover type: Hardback