James Allen 
From Poverty To Power; Or, The Realization Of Prosperity And Peace [EPUB ebook] 

From Poverty to Power is Allen’s first book, published in 1901. Allen is known to be a pioneer of self-help movement. The book covers the nature of evil, and ways to get out of undesirable conditions to success, health and power. Unlike the self-help genre these days the book is short, to the point and clearly the author is under no pressure to add fluff to make the book longer. Search online and you will find some inexpensive editions. I love self-help books that add value with only a few hours of investment. This one fits the bill.