While not all Article Directories require it, you'll want to create a summary or description of your article before you start your article submission process. Some authors use their first few sentences. I sometimes do that if I feel stuck, tired, or lazy. Most of my older articles have the format of one sentence beginning "This article ...." because that's how I published my list of articles on my main web site.
With my newer articles, I usually start with a question aimed at the potential reader and then make a statement or two that introduces how the article will answer the question. Most Article Directories tell you the word or character limitation for the description or suggest 2-3 sentences.
When readers are looking through Article Directories, they usually look first at the title, then to see if the name of the author is recognizable, and then at this description, if one is available. Think of it as a teaser; think of it as an executive summary; think of it as an expanded title. Think of it however you want, but do think about it and use it to your advantage. Even if your favorite Article Directory does not include a description, it's worth writing because it can synthesize your thinking and improve your whole article submission process.
title
author
date
place of publication.
If you're writing a review, make sure you specify the genre or type of book (e.g., fiction, nonfiction, biography, poetry)