This is one of the best English vocabulary developing book in the market for those who really want to develop their english vocabulary.
This book changed my thought on english language. I thought words are very hard to remember so I didn't like it much but then I got this book recommended by my brother.
This book is for any level of pepole from beginners to intermediate because words are described in very easy language and with the examples with exercise at the end of each session so You can easily remeber words.
Techinique to teach words are really innovative in this book written by norman lewis and I assure you no one gonna dislike this book and it won't be boring.
If you want to grow your vocabulary the close your eyes and go for it.