Wayside School Series Novels

Wayside School Beneath the Cloud of Doom (Wayside School 4) by Louis Sachar
Wayside School Gets a Little Stranger (Wayside School 3) by Louis Sachar
More Sideways Arithmetic From Wayside School (Wayside School 2.60) by Louis Sachar
Sideways Arithmetic From Wayside School (Wayside School 2.50) by Louis Sachar
Wayside School Is Falling Down (Wayside School 2) by Louis Sachar
Sideways Stories from Wayside School (Wayside School 1) by Louis Sachar