Since there is not other SE-community on management I ask this here, but I am happy to be guided somewhere else.
Even though there a different definitions of what a project is, they all have in common that projects have a start and an ending. But for example working in or managing retail does not necessarily fit into this description (since it is a continuous process).
Is there an equally organised community of managers who do not work as project managers? How do the good practices differ from project management?
What is the umbrella term for non-project management? Does there exist a PMBOK-syle reference guide for this kind of management?