9 books • 9 series
Stathead Sports (Stathead Sports)
Real Heroes of Sports (Real Heroes of Sports)
Record Breakers (Record Breakers)
Six Degrees of Sports (Six Degrees of Sports)
Legends of Rock (Legends of Rock)
Sports Rivalries (Sports Rivalries)
Super Trivia Collection (Super Trivia Collection)
Winner Takes All (Winner Takes All)
Big Cats (Big Cats)