Research report · ReadingList.school · 2026
State of K-12 Reading Lists 2026
What US public schools actually assign — synthesized from 310 primary-source citations across 15 curriculum frameworks, 50 state ELA standards, 20 of the largest US public school districts, and the canonical Common Core / AP / IB / Cambridge reading lists.
Published 2026-05-16 · Updated 2026-05-16 · CC BY 4.0 — please credit ReadingList.school when citing
Methodology
Every book in the dataset is cross-referenced against at least one primary source: the Common Core State Standards Appendix B exemplar list (achievethecore.org), an AP / IB / Cambridge syllabus or course audit, a published state ELA framework, or a public-facing district curriculum page. Each assignment row stores the source URL alongside the book × curriculum × grade × state metadata, so any reader can audit the underlying citation. Reading-level data (Lexile measures, grade ranges) is sourced from MetaMetrics, Open Library, and publisher metadata; banned / challenged status from PEN America’s Index of School Book Bans and the ALA most-challenged list.
For full per-record citation framework, see the ReadingList Classification Standard. The full dataset is also available as a machine-readable public REST API (CC BY 4.0).
Finding 1 — The Common Core canon dominates
The top 20most-assigned books in the dataset account for a disproportionate share of citations, confirming what English department chairs have known for decades: the “canon” — a stable set of mid-20th- century American novels — anchors most US high-school ELA curricula. The top entries below appear in Common Core Appendix B, AP English Literature course audits, IB Diploma Programme prescribed lists, and state ELA frameworks simultaneously.
- To Kill a Mockingbird — Harper Lee · Lexile 870L
- Of Mice and Men — John Steinbeck · Lexile 630L
- The Great Gatsby — F. Scott Fitzgerald · Lexile 1070L
- The House on Mango Street — Sandra Cisneros · Lexile 870L
- Their Eyes Were Watching God — Zora Neale Hurston · Lexile 1080L
- 1984 — George Orwell · Lexile 1090L
- A Raisin in the Sun — Lorraine Hansberry
- Beloved — Toni Morrison · Lexile 870L
- Hatchet — Gary Paulsen · Lexile 1020L
- Lord of the Flies — William Golding · Lexile 770L
Finding 2 — Curriculum coverage is uneven
Of the 15 curriculum frameworks tracked, coverage by book count varies sharply. Common Core State Standards (which 41 states have adopted in some form) leads; AP English Literature and IB Diploma Programme English follow closely. State-specific frameworks (Texas TEKS, Florida B.E.S.T., NY Next Gen) typically overlap heavily with Common Core exemplars but add region-specific titles.
- Common Core State Standards (ELA)101 books · 264 citations
- AP English Literature & Composition29 books · 34 citations
- IB Diploma Programme — English A: Literature7 books · 7 citations
- AP English Language & Composition1 book · 1 citations
- AP US Government & Politics1 book · 1 citations
- AP United States History (APUSH)1 book · 1 citations
- Cambridge AS & A-Level English Literature (9695)1 book · 1 citations
- Cambridge IGCSE English Literature (0475)1 book · 1 citations
Finding 3 — Banned-book pressure clusters on canon titles
25titles in the dataset have documented removals, restrictions, or formal challenges in at least one US school district per PEN America’s 2022-2024 index. The most-banned titles overlap substantially with the most- assigned canon — books like The Bluest Eye, Beloved, and To Kill a Mockingbird appear simultaneously in Common Core exemplar lists AND on multi-state challenge indexes, suggesting challenges target widely-taught texts rather than fringe selections.
- The Hate U Give — Angie Thomas · documented in 7 states
- The Absolutely True Diary of a Part-Time Indian — Sherman Alexie · documented in 6 states
- Beloved — Toni Morrison · documented in 6 states
- The Bluest Eye — Toni Morrison · documented in 6 states
- Stamped: Racism, Antiracism, and You — Jason Reynolds and Ibram X. Kendi · documented in 6 states
- Speak — Laurie Halse Anderson · documented in 5 states
- I Know Why the Caged Bird Sings — Maya Angelou · documented in 5 states
- Of Mice and Men — John Steinbeck · documented in 5 states
- To Kill a Mockingbird — Harper Lee · documented in 4 states
- The Kite Runner — Khaled Hosseini · documented in 4 states
See the full per-state breakdown at /banned-books. “Documented in N states” means at least one district within each listed state has formally challenged or removed the title; no state has a universal ban.
Finding 4 — Lexile measures by grade band
Reading-level expectations rise non-linearly through K-12. The K-2 band concentrates around 200-600L (decoding-heavy picture books and early chapter books). Grades 3-5 widen to 500-900L as narrative complexity grows. Middle grades (6-8) mostly fall in the 700-1100L range. By high school (9-12), assigned texts cluster between 900-1300L, with AP/IB texts reaching 1400L+ for dense classics.
- Grades K-214 books · 210–990L · mean 575L
- Grades 3-542 books · 550–1020L · mean 780L
- Grades 6-817 books · 600–1170L · mean 858L
- Grades 9-1229 books · 590–1420L · mean 953L
Finding 5 — State-level citation density
Citation counts vary by how publicly accessible each state’s ELA framework is. States with publicly indexed, named ELA standards (Texas TEKS, Florida B.E.S.T., Massachusetts ELA Frameworks, New York Next Generation) appear with the most distinct citations because their reading lists are straightforwardly indexable.
- New York28 citations
- California21 citations
- Texas18 citations
- Illinois10 citations
- Florida8 citations
- Massachusetts7 citations
- Ohio5 citations
- Georgia3 citations
- Michigan2 citations
- Oregon2 citations
Finding 6 — Citations cluster in upper grades
Assignment density rises sharply through middle and high school. Elementary grades (K-5) typically rely on teacher- level title selection rather than formally cited reading lists, while AP / IB / Cambridge frameworks pin specific titles to specific course years in grades 9-12 — producing denser citation records there.
How to use this data
- Parents + teachers: see grade-level reading lists or state-level reading lists to find exactly what’s assigned in your school context, with cited sources on every book page.
- Librarians + curriculum coordinators: the curriculum hub shows the Common Core / AP / IB / Cambridge crossover for collection-development decisions.
- Researchers + journalists: the full dataset is available as a free, no-auth REST API — see API documentation for OpenAPI 3.1.0 spec + endpoint reference. CC BY 4.0 license; please credit ReadingList.school in published work.
- Ed-tech / AI tutor builders: the /api/v1/recommend endpoint accepts grade × curriculum × state × Lexile filters and returns grade-appropriate titles with citations.
- Bloggers + educators: the embeddable widgets let you drop a grade / state / curriculum reading list into any site (no JS framework required, CC BY 4.0).