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Yes!: 50 Scientifically Proven Ways to Be Persuasive (Hardcover)
by Noah J. Goldstein (Author), Steve J. Martin (Author), Robert B. Cialdini (Author)
Public Speaking for Success Success (Paperback)
by Dale Carnegie
Do You!: 12 Laws to Access the Power in You to Achieve
Happiness and Success
by Russell Simmons
Go Put Your Strengths to Work: 6 Powerful Steps to
Achieve Outstanding Performance
by Marcus Buckingham (Author)
Vocal Power
Harnessing the Power Within
The Vocal Awareness Method
Arthur Samuel Joseph |