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Become a successful Project Manager
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A Guide to the Project Management Body of Knowledge, Third Edition (PMBOK Guides)A Guide to the Project Management Body of Knowledge, Third Edition (PMBOK Guides) by Project Management Institute
Buy new: $32.97 / Used from: $30.00
A must read for all new and experienced project managers
Project Management: A Systems Approach to Planning, Scheduling, and ControllingProject Management: A Systems Approach to Planning, Scheduling, and Controlling by Harold Kerzner
Buy new: $68.31 / Used from: $57.00
PMP Exam Prep, Fifth Edition: Rita's Course in a Book for Passing the PMP ExamPMP Exam Prep, Fifth Edition: Rita's Course in a Book for Passing the PMP Exam by Rita Mulcahy
Buy new: $56.07 / Used from: $52.95
This PMP exam prep in combination with PM FASTrack CD-ROM will help you cruise through the PMP exam
PM FASTrack: PMP Exam Simulation Software, Version 5.2.0PM FASTrack: PMP Exam Simulation Software, Version 5.2.0 by Rita Mulcahy
Buy new: $269.10 / Used from: $249.00
See above comment
The PMP Exam: How to Pass On Your First Try (Test Prep series)The PMP Exam: How to Pass On Your First Try (Test Prep series) by PMP, Andy Crowe
Buy new: $50.37 / Used from: $31.90
A nice practice exam for the PMP is included in this book
CMMI(R): Guidelines for Process Integration and Product Improvement (The SEI Series in Software Engineering)CMMI(R): Guidelines for Process Integration and Product Improvement (The SEI Series in Software Engineering) by Mary Beth Chrissis
Buy new: $54.00 / Used from: $2.99
If you are in System or Software engineering, sections on PM process areas are a must read
Microsoft  Office Project 2003 Inside OutMicrosoft Office Project 2003 Inside Out by Teresa S. Stover
Buy new: $31.49 / Used from: $4.29
MS Project application bible
Microsoft® Office Project 2003 Step by Step (Step By Step (Microsoft))Microsoft® Office Project 2003 Step by Step (Step By Step (Microsoft)) by Carl Chatfield
Buy new: $19.79 / Used from: $11.95
A good starter's book on MS Project