A thesaurus that is "specially designed for everyday use in home, school and office. More than 60,000 synonyms and antonyms. Basic English words for daily use. Not published by the original publishers of Roget's Thesaurus, nor by any of their successors.
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.