The Authority of Genius

Card 01 of 10 · Reach

99% of U.S. public school districts. One publisher serves them.

Rows of red schoolhouses and students at desks beneath an open textbook, from the editorial poster.

McGraw Hill, 2025 SEC prospectus: districts served, not market share. Its 2026 annual report gives 91%.

Open the full investigation26 case files, every source linked

The other cards: № 02 · № 03 · № 04 · № 05 · № 06 · № 07 · № 08 · № 09 · № 10