There are many different types of project managers, each with their own specific areas of expertise. However, some of the most common skills and knowledge required for the job include the ability to plan and organize effectively, monitor progress and budget, and motivate and lead teams.
In terms of specific expertise, project managers often need to have a deep understanding of the subject matter they are dealing with, whether it is construction, software development, or another type of project. They also need to be well-versed in project management methodologies and tools, and have a good understanding of both the technical and business aspects of a project.
If you are interested in becoming a project manager, you can learn more about the skills and knowledge required for the job through an accredited project management program.