I am sure that a PMP will allow you to earn more. But how much?
You may want to visit the site to find out:
Suggested Study Materials
- PMP-Preparation Recommended Books
- PMP Exam Prep, Fifth Edition: Rita's Course in a Book for Passing the PMP Exam
- A Guide to the Project Management Body of Knowledge, Third Edition (PMBOK Guides)
- The PMP Exam: How to Pass On Your First Try (Test Prep series)