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In The New Psychology by Charles F. Haanel, the author of the Master Key System, you will learn how to unlock the power of positive thinking. Haanel believe that if you learn to think in a certain way than success can be yours. An important self help book by one of the most important self help authors ever. Without Haanel We would never have had The Secret or The Power of Positive Thinking.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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