A Lexile measure is a valuable piece of information about either an individual’s reading ability or the difficulty of a text, like a book or magazine article. The Lexile measure is shown as a number with an “L” after it — 880L is 880 Lexile. A student gets his or her Lexile reader measure from a reading test or program. A book, article or piece of text gets a Lexile text measure when it’s analyzed by MetaMetrics. Take a look at this video to learn more about Lexile measures.