William Walker Atkinson 
Psychology of Salesmanship [PDF ebook] 

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. In order to bring to the mind of the reader the full idea of the Operation of psychological principles in the sale of goods, we Shall men tion a few particular instances in which these principles have played a part. Each reader will be able to recollect many similar instances, once his attention is called to the matter.