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.
The gold standard of original editions, bringing together Biblia Hebraica Stuttgartensia with its masora along with Nestle-Aland 27th edition and its critical apparatus.
It's transportable; still heavy, hard to read at times, but able to be more easily brought to class or church or something of that sort.
Highly recommended for students of the Bible in its original languages.