کتاب The Heinmann Word Builder فزایش و تقویت دایره واژگان زبان انگلیسی 

This book is designed to help the student of English whose only weapons in the battle against vocabulary have, until now, been a dictionary and a dog-eared note-book with lists of unconnected words, approximate translations alongside. I felt a book which world help students to build their active vocabulary, while at the same time helping with the recognition of less common or important words, would be a useful tool with which they could work their way deeper into the language.

The book is designed to be used by a class of students, a couple of friends or an individual working alone. It is particularly useful for students who are not living in an English-speaking country, and so are not exposed to the everyday expressions that are presented and practised in this book.
The level is post-intermediate, which means it should be useful for students who have met the basic structures of English at least once, but have a relatively narrow vocabulary range. It is particularly good practice for users who wish to improve their speaking or writing, or for those who are preparing for a national exam or for the Cambridge First Certificate. Even Cambridge Proficiency exam candidates and other advanced users and students of English will find that there is a lot they can learn in the Heinemann English Wordbuilder.
Because this is a book about language, some of the sections will be most beneficial if the user can argue, experiment and practise with someone else, but users working alone at home can greatly improve and broaden their use of English through the presentation and written practice provided.