Rick Riordan — books in US schools
4 titles assigned across state ELA standards, AP/IB, and Common Core
The Lightning Thief (Percy Jackson and the Olympians, Book 1)
Rick Riordan
Grades 4–7 · Lexile 740L
The Sea of Monsters
Rick Riordan
Grades 4–6
The Mark of Athena
Rick Riordan
Grades 5–9
The Lost Hero
Rick Riordan
Grades 5–9
