This chapter provides theoretical lenses for and upon planning that derive from and are inspired by those critiques and the concepts they articulate. Planning, and our theorizing of it, have been equally charged as having a "duplicitous relationship to processes of capitalist accumulation and liberal notions of benevolent trusteeship". The chapter provides a combined reading across a range of scholarly literatures including settler-colonial studies, postcolonial theory, and critical Indigenous theories. Postcolonial critiques seek a critical cognizance of colonial relations of power and the operation of imperialist ideologies by deploying concepts and philosophical lineages that try to render the familiar strange. The chapter sets out what we see as the primary points of departure and ethico-political commitments of postcolonial theorizing. Colonialism is a contemporary, persistent phenomenon. Postcolonial theorizing seeks to analyze the way colonial hegemony constructs difference in the service of its own power.