posted 16 years ago
The other responses do a good job of summarizing a lot of advantages of the PMP certification.
But I want to point out one really important thing: understanding the material in the PMBOK(r) Guide and on the PMP exam can actually make you a better project manager. If you take the time to understand things like how to manage your project's scope, cost and schedule, how to improve the quality of your project's deliverables, techniques for managing people, etc., and if you apply them to your projects, then you'll definitely see an improvement in your projects' results.
Now, that doesn't mean that a project manager with a PMP certification is automatically better than one who doesn't have one. And there are many very, very good project managers (and programmers who understand how to run a project well!) who are very good at making sure projects come out well. But it shouldn't be too surprising that a lot of the tools and techniques that they use to make their projects come out well are things that you'll see on the PMP exam.
Andrew Stellman
Author of Head First Agile, Learning Agile, Beautiful Teams, Head First C#, Head First PMP, and Applied Software Project Management (O'Reilly)