The Magic School Bus is a 8-book series with 8 primary works first released in 1986 with contributions by Joanna Cole and Bruce Degen.
1986 • 5 Readers • 44 pages • 3.7
1987 • 3 Readers • 50 pages • 4
1997 • 5 Readers • 52 pages • 3
1999 • 3 Readers • 47 pages