#Agile4

Scrum's definitive definition from its authors, in about a dozen pages — accountabilities, events and artifacts, with nothing to buy and no framework vendor attached.

Four values and twelve principles on a single page — the document every agile method descends from, worth reading before any course that claims to teach it.

A practitioner's handbook on running agile teams — sprints, backlogs, estimation and retrospectives — written from experience rather than from the certification syllabus.

The project-management half of the same handbook: planning, tracking, releasing and reporting on work without pretending software estimates are certainties.