the master key by haanel?

Question

I found a book titled " The Master Key," by Charles F. Haanel. Copyright date 1919, No publisher, Can anyone out there help me understand what this book is, It is not the same as The Master Key System,
I can not find a publisher in this book, I don't belive any pages are missing. It contains 128 numbered pages, The boards are Red , It is a Hard Cover, Page two has a letter to Chas, Haanel by Napoleon Hill. Thanking him for the Master Key System course, That he feels his success is due to his knowledge from The Master Key System.

On page number 7, Starts part one, Part 2 starts on page 17, The Master Key Systems starts page 31 to page 38, followed by another letter, than a description of parts 1 to 24, Than followed by more letters to Charles Haanel, Page 53 Master Key Resume by Mrs Coe Dixon, Than again followed by more letters,

I am not sure what this book is, Was it a promo book for The Master Key Systems, If anyone out there more about this book, Please let me know!

Answer 1

Charles F. Haanel wrote five major books during his life. He also wrote some smaller books, mainly marketing materials to support his main works. Perhaps this is what you have.