Books US schools assign, by Lexile measure
The Lexile Framework places readers and texts on the same scale — a 700L reader is matched to ~700L books. Schools and parents use Lexile to pick books that stretch but don’t frustrate. Each band below lists the assigned-reading canon at that level, with grade range and curriculum coverage per title.
- 300L–600L15 books on file
- 600L–900L75 books on file
- 900L–1200L39 books on file
- 400L–499L3 books on file
- 500L–599L10 books on file
- 600L–699L14 books on file
- 700L–799L33 books on file
- 800L–899L28 books on file
- 900L–999L16 books on file
- 1000L–1099L15 books on file
- 1100L–1199L8 books on file
Typical Lexile-to-grade map
Lexile ranges aren’t strict grade boundaries — they describe text complexity, not who should read it. Common reference:
- 300L–600L
- Early-elementary readers (typically grades 2–4)
- 600L–900L
- Late-elementary + middle school (typically grades 4–8)
- 900L–1200L
- Middle school + high school (typically grades 6–12)
- 1200L+
- Advanced high school + college-prep (typically grades 11–12+)