I have been through this book and certainly it is the most effective vocabulary builder in the English language.
Its not just to read instead u talk to it, read along with it write in it as active participation is necessary for real learning.
It teaches you how to pronounce the word correctly, how to etymological approaches works better than any other method for learning words quickly and permanently, hoe to master nouns, verbs, adjectives, and the adverbs in five to ten days.
I am reading this book and m working with the book because just reading is not enough. its not a story book to enjoy only it is to learn and enjoy the learning.