There's always a phase that we humans go through a phase of doubt, self questioning. It's mostly tiring and demotivating and once you feel you're about to sink you turn for help, help in the form of books, people and so on.
The 5 killer habits is just one Of a kind, entirely unique in its genre with an excellent yet simple style, rather than talking on how to be better the book emphasises the outcomes upon being better,and staying disciplined and consistent. So if you're someone browsing through self help books or are in a dilemma on buying this book, I'd highly recommend it to you