The Lexile Framework for Reading

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Will published Lexile measures change?

Last Updated: Jun 14, 2017 11:30AM EDT
Although the vast majority of books that have Lexile measures do not change, a small subset of books required updated Lexile measures. There are two cases where a published Lexile measure was issued an updated Lexile measure:
  1. If a book was below 0L and previously had a standalone “BR” (Beginning Reader) code. BR is a code that was given to texts that measured below 0L. Books below 0L will still receive a BR code, but now with a Lexile measure as well (e.g., BR100L, BR200L). To learn more about the BR code, see the “What does the BR code mean?” FAQ.
  2. ‚ÄčIf, when measured with the enhanced Lexile Analyzer, there is a change of 60L or more from the book’s original Lexile measure. The 60L threshold allows for a targeted reading experience to still occur and ensures that reading comprehension is minimally impacted.
We are working with publishers, booksellers and distributors to help transition them to the updated Lexile measures. 

For more information on these enhancements and matching beginning readers with texts, visit
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