Start with high-confidence education policy books, then narrow by subgenre or adjacent topics.
The Making and Shaping of the Victorian Teacher
M. Larsen, Marianne A. Larsen
Workforce Education
William B. Bonvillian, Sanjay E. Sarma
An Abundance of Caution
David Zweig
Why School Boards Matter
Scott R. Levy
Reign of Error
Diane Ravitch
Inside American Education
Thomas Sowell
Dumbing US Down - 25th Anniversary Edition
John Taylor Gatto
Dream Town
Laura Meckler
The Cradle of Citizenship
James Traub
Let Colleges Fail
Richard K. Vedder
Hope Against Hope
Sarah Carr
Badass Teachers Unite!
Mark Naison
Why Fascists Fear Teachers
Randi Weingarten