Although the documents identified as Baha'u'llah's primary
works have been the focus of translation work so far, they represent only a
small portion of His writings during His 40-year ministry. All totaled, He
revealed thousands of tablets, which altogether would constitute a volume more
than 70 times the size of the Qur'an and more than 15 times the size of the Old
and New Testaments of the Bible.
(Baha’i World News Service, 22 September 2002)