Most of our money and time are spent on things that could help us succeed about 4% but this book is about the factors that accounts for remaining 96%.
Merits:
(1) Down-to-earth practicability
(2) The identity of the persons who changed their worst curse into their master-piece are revealed this increase the reliability of the book(i.e the facts are true)
(3) Easy steps to discover our true potential.
Demerits:
(1) None so far.