All the books and teaching materials were donated to the Green Bay Adventist Junior Academy by the family of Sturgeon Bay teacher Sheila Saunders.
She lost her battle with breast cancer in January.
Her last wish was to have her collection of more than 12-thousand books donated to the academy to provide materials for their teachers and students.
Volunteer Susan Slikkers told Local Five News, "As a small private school, the volume is much more than we could ever consume probably. So we decided we would put on a teacher book sale because one of Sheila's last requests was please get this in the hands of other teachers."
Many of the items donated are duplicates, so teachers who purchase them can have enough to give a copy to each of their students.