At its core, Agile is an iterative and incremental approach to software development and project management that emphasizes flexibility, collaboration, and the rapid delivery of value. The key idea is to break work down into smaller increments (often called sprints), review frequently with stakeholders, learn and adjust, then repeat.
Here are a few trusted, high-quality links that cover the essentials of Agile — great for reference, learning, or sharing:
Agile Manifesto (Official Site)
https://agilemanifesto.org
The original 2001 document defining the four values and twelve principles of Agile development.
Agile Alliance – Agile 101
https://www.agilealliance.org/agile101
Explains the history, core principles, and variations of Agile frameworks.
Wikipedia – Agile Software Development
https://en.wikipedia.org/wiki/Agile_software_development
A comprehensive overview including methodologies, benefits, and comparisons.
Atlassian Agile Coach
https://www.atlassian.com/agile
Covers Scrum, Kanban, sprints, user stories, retrospectives, and scaling Agile.
Scrum.org – What is Scrum?
https://www.scrum.org/resources/what-is-scrum
Official Scrum framework guide from one of the leading organizations.
Scaled Agile Framework (SAFe)
https://scaledagileframework.com
Resources for applying Agile principles at enterprise scale.
Agile Project Management (Coursera)
https://www.coursera.org/learn/agile-project-management
Free online course introducing Agile and Scrum fundamentals.
Agile Principles and Mindset (LinkedIn Learning)
https://www.linkedin.com/learning/topics/agile-methodologies
Professional development videos and certification prep.