A reference letter or letter of reference is a letter in which the writer makes a general assessment of the qualities, characteristics, or confirms details about that individuals situation or circumstances.
Reference letters are different from recommendation letters in the sense that they are usually more general in nature and are not normally addressed to a specific requestor. Normally letters of reference are addressed as To Whom or Dear Sir. Letters of reference typically include character related, college program admission related, employment related, or general purpose letters
A letter is an element in an alphabetic system of writing, such as the Greek alphabet and its descendants. Each letter in the written language is usually associated with one phoneme sound in the spoken form of the language.
Written signs in other writing systems are best called syllabograms which denote a syllable or logograms.
Some writing systems have two major forms for each letter an upper case form also called capital or majuscule and a lower case form also called minuscule. Upper and lower case forms represent the same sound, but serve different functions in writing. Capital letters are most often used at the beginning of a sentence, as the first letter of a proper name, or in inscriptions or headers.
A letter may be printed in a number of different sizes or forms, depending on choice of typeface. A typeface is a single, stylistically consistent set of forms for letters or glyphs. A particular typeface may alter standard forms of characters, may present them with different optical weight, or may angle or embellish their forms. A font is more specific than a typeface, since it specifies the size of the letters as well as the form.
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