Dictionary: a book or electronic resource that lists the words of a language (typically in alphabetical order) and gives their meaning, or gives the equivalent words in a different language, often also providing information about pronunciation, origin, and usage. Anthology: a published collection of poems or other pieces of writing. Encyclopaedia: a book or set of books giving information on many subjects or on many aspects of one subject and typically arranged alphabetically. Directory: a book or website listing individuals or organizations alphabetically or thematically with details such as names, addresses, and telephone numbers.