From the moment Jeremy Corbyn was elected Labour leader, Corbynism has been dismissed, derided or romanticised, but rarely taken seriously as a set of ideas on its own terms. This book critically outlines the shared understanding of capitalism and its alternatives that unites the component parts of the Corbyn movement. It decodes the central tenets of the Corbynist worldview, showing their coherence with contemporary political-economic shifts and conspiratorial understandings of global capitalism as a `rigged system' common to populist nativism in an age of Trump and Brexit.