How to learn vocabulary effectively

I know a way to learn Vocabulary very effective. As you know, we have an assignment 20 academic words a week, to do that ass, I always prefer to choose books that cover vocabularies use commonly in the life. I list words we usually use in our life to write down and after done 20 words, I mark words that  we use commonly and easy to learn to remember them. By doing that, you not only finish your ass but also you can learn more vocabularies for your self.