The 2020 Scrum Guide
by Ken Schwaber, Jeff Sutherland · Scrum.org / ScrumGuides.org
The canonical 13-page definition of Scrum by its co-creators, covering the framework's roles, events, artifacts, and underlying empirical theory. Free, brand-neutral, and the single source of truth that every certification and practitioner defers to.
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User Stories Applied: For Agile Software Development
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Succeeding with Agile: Software Development Using Scrum
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Manifesto for Agile Software Development
The 2001 founding document of the Agile movement, stating four values and twelve principles signed by seventeen software thought leaders. Establishes the philosophy that Scrum and every other agile method operationalize.