Encyclopedia
noun (also encyclopaedia) /ɪnˌsaɪ·kləˈpi·di·ə/
A large collection of information about one or many subjects, often arranged alphabetically in articles in a book or set of books, or available through a computer.
General Encyclopedias
Encyclopaedia Britannica
For 250 years, Encyclopaedia Britannica has been a trusted source of knowledge. It documents human potential through discoveries and innovations across generations.
Bartleby
Bartleby is a student success hub developed by Barnes & Noble Education. It provides tools such as textbook solutions and writing support to improve student learning outcomes.
Bartleby Textbook Solutions offers step-by-step explanations to complex problems.
Bartleby Writing helps students jump-start writing assignments with model essays and writing support.
Special Subject Encyclopedias
Catholic Encyclopedia
An authoritative reference covering Catholic doctrine, history, contributions to science, literature, and the arts, as well as the global impact of Catholic scholarship.
Symbols.com
An online encyclopedia dedicated to symbols, signs, flags, and glyphs organized by culture, religion, country, and more.
An online encyclopedia focusing on mythology, folklore, and religion.
Internet Encyclopedia of Philosophy
Founded in 1995, the IEP provides open-access, peer-reviewed scholarly information on philosophers and philosophical topics worldwide.
