Létà tabi Ábídí je a grapheme in an alphabetic system of writing, such as the Greek alphabet and its descendants. Letters compose phonemes and each phoneme represents a phone (sound) in the spoken form of the language. Unicode Millard, A. R. (1986), "The Infancy of the Alphabet", World Archaeology, 17 (3): 390–398, doi:10.1080/00438243.1986.9979978  Daniels, Peter T., and William Bright, eds 1996. The World's Writing Systems. ISBN 0-19-507993-0. Powell, Barry B. 1991. Homer and the Origin of the Greek Alphabet. ISBN 978-0-521-58907-9 | ISBN 0-521-58907-X. Robinson A. 2003, "The Origins of writing" in David Crowely and Paul Heyer 'Communication in History: Technology, Culture, Society' (fourth edition) Allyn and Bacon Boston pp 34–40 Convert Text case Upper case to Lower case and Lower case to Upper case Unicode Code Charts LetterCount.com Count the number of letters in a document Word-Counter.com Count number of alphabets and letters, with and without spaces, count words and typing speed test