Only recommend articles you like, only introduce completed articles, and an author only recommends one article. So I will choose carefully, so I will think deeply, so I will look at it once, twice or even three times. I don't want to just write the name and copy of the article I like, because that can't express my feelings about reading the article. I will carefully describe to you why I like this book, what is good about it, and what is good about it. So... It may be slow, so please be patient and bear with me.