National libraryA national library is a library established by a government as a country's preeminent repository of information. Unlike public libraries, these rarely allow citizens to borrow books. Often, they include numerous rare, valuable, or significant works. A national library is that library which has the duty of collecting and preserving the literature of the nation within and outside the country. Thus, national libraries are those libraries whose community is the nation at large.
EncyclopediaAn encyclopedia (American English) or encyclopædia (British English) is a reference work or compendium providing summaries of knowledge either general or special to a particular field or discipline. Encyclopedias are divided into articles or entries that are arranged alphabetically by article name or by thematic categories, or else are hyperlinked and searchable. Encyclopedia entries are longer and more detailed than those in most dictionaries.
Encyclopædia BritannicaThe Encyclopædia Britannica (Latin for "British Encyclopædia") is a general knowledge English-language encyclopædia. It has been published by Encyclopædia Britannica, Inc. since 1768, although the company has changed ownership seven times. The encyclopædia is maintained by about 100 full-time editors and more than 4,000 contributors. The 2010 version of the 15th edition, which spans 32 volumes and 32,640 pages, was the last printed edition. Since 2016, it has been published exclusively as an online encyclopaedia.
Pearson plcPearson plc is a British multinational publishing and education company headquartered in London, England. It was founded as a construction business in the 1840s but switched to publishing in the 1920s. As of 2017, it is the largest education company, and it was once the largest book publisher in the world. In 2013 Pearson merged its Penguin Books with German conglomerate Bertelsmann. In 2015, the company announced a change to focus solely on education. Pearson owns one of the GCSE examining boards for the UK, Edexcel.
