『Let's Talk the resume of the book "The Power of Concentration by William Walker Atkinson"』のカバーアート

Let's Talk the resume of the book "The Power of Concentration by William Walker Atkinson"

Let's Talk the resume of the book "The Power of Concentration by William Walker Atkinson"

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The Power of Concentration, by William Walker Atkinson, was first published in 1918; it highlights the importance of concentration in achieving personal and professional success and offers practical lessons and exercises to develop concentration and mental control.

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