Books can be attributed to "Anonymous" for several reasons:
* They are officially published under that name * They are traditional stories not attributed to a specific author * They are religious texts not generally attributed to a specific author
Books whose authorship is merely uncertain should be attributed to Unknown.
Good version in that there is side-by-side English translation to the original Hebrew text, but the English translation is often not very accurate and/or extremely dry and not very easily readable. However, the side-by-side English translation provides excellent convenience as valuable resource when studying and learning the original Hebrew language - i.e. instead of having to go back and forth between two separate (Hebrew and English) books.
This is the Tanakh (Hebrew Bible) I have been using from middle school through college and into rabbinical school. The more I learn to read the original Hebrew, the more appreciative I am of this straightforward, literal translation.