Start with high-confidence legal history books, then narrow by subgenre or adjacent topics.
A People's History of the Supreme Court
Peter Irons
Imbeciles
Adam Cohen
The Rise of the Barristers
Wilfrid R. Prest
Inventing Human Rights
Lynn Hunt
East West Street
Philippe Sands
The Sewing Girl's Tale
John Wood Sweet, Gabra Zackman
Who Owns This Sentence?
David Bellos, Alexandre Montagu
The Burger Court and the Rise of the Judicial Right
Michael J. Graetz, Linda Greenhouse
The Trial of Lizzie Borden
Cara Robertson
The Rule of Laws
Fernanda Pirie
Department of Fate
Rachel Maddow
Captain's Dinner