Buy this book only if you already can’speak better write better "English and only want to time pass with some English book as you are not going to learn anything from this book .Actually what you can only do with this book is just start learning when you will feel now you started understanding the topic or observe some improvement in you and now you will need to do practice then you will find that chapter ends and you will have to start other topic . My suggestion is that do not buy this book there are many error in pronunciation such as
on page 42 Gibberish
on page 44*Agile,
futile
All are pronunciation wrongly
NO one expect errors in this book which is specially made for pronunciation .