Hootsuite's manifesto outlines the company's core principles, mission, and culture, emphasizing a social revolution in customer relationships and a collaborative, egoless team environment. The document highlights Hootsuite's growth history, commitment to innovation, and the significance of the #bsu culture, which encourages disruptive creativity and boldness among employees. It serves as a guide for new team members, sharing insights into the rewarding work environment and community at Hootsuite.