"Contains over 100 dictionary, language reference, and subject reference works published by Oxford University Press" (from the database). Covers a range of subject areas (arts and humanities, social sciences, business, science and technology).
"The national record of men and women who have shaped British history and culture, worldwide, from the Romans to the 21st century. The Dictionary offers concise, up-to-date biographies written by named, specialist authors." Updated three times per year.