You can use dictionaries, encyclopedias and other reference works to:
Some useful dictionaries and encyclopedias are listed below.
The Literary Encyclopedia is an online literary reference work written by specialists from universities around the world. It has published a wealth of articles on English, American, modern European, and Classical literatures, with coverage of other world literature growing.
Oxford dictionary of national biography (ODNB) is 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.
The Oxford English Dictionary (OED) is widely regarded as the accepted authority on the English language. It is an unsurpassed guide to the meaning, history, and usage of 500,000 words and phrases past and present, from across the English-speaking world.