Every project is unique. But the key to project success can be based on a generic approach supported by a set of good practices. That is the basis of ISO 21500 - Guidance on project management, the latest international standard for project management, and the first of a family of ISO standards for project, portfolio and program management. This pocket guide provides a quick introduction as well as a structured overview of the ISO 21500, which also applies to national standards based on this standard (e.g. BSI, DIN, NEN, NORM, etc.). In an easily accessible way the content and practical use of the ISO 21500 are explained, which provides knowledge about the essential concepts and processes of effective project management. It also deals with the key issues and themes within project management.