Its a necessary book everyone ought to have this . It contains nearly all the difficult words have been asked or can be asked in any compititive exam no one can ever pass English section of any compititive exam without reading this book . Norman lewis prepared a wonderful product in the form of this book . Some vocabulary words are even wrong but maximum are right and we should not blame due to some words on the other hand enjoy the beuty of vocabulary in this book . Some personality development chapter are also given that are more golden that any motivation novel