This book is like an abcd of English language i.e it serves as a basic and vital for start ups.
What makes this books different from its field competitors is the way everything is explained in this book. The pictorial representation, examples are according to situation , analogies are effective.
Readability if this book is very good.
Time is crucial for everyone and this book is crisp, precise and to the point which saves time.
What this book taught me is how to avoid competition, how to start and how to expand.
In a nutshell it is a time saver with good content