This document discusses lessons on allyship from the Dr. Seuss book The Lorax. It defines allyship as a lifelong practice of unlearning biases and building trust with marginalized groups. Privilege exists when some groups are denied things simply due to their group membership. Oppression exists on individual, institutional and societal levels, both intentionally and unintentionally. The document urges leaning into discomfort to become better allies and advocates speaking for those without a voice, as the Lorax speaks for the trees. It provides tips for inclusive leadership.