Start with high-confidence eastern european history books, then narrow by subgenre or adjacent topics.
20th Century Black Lamb Grey Falcon
Rebecca West
The Fall of Yugoslavia
Misha Glenny
Horde
Marie Favereau
Red Famine
Anne Applebaum
In Europe's Shadow
Robert D. Kaplan, Paul Boehmer
The Oak and the Larch
Sophie Pinkham
Gulag
Bloodlands
Timothy Snyder
Street Without a Name
Kapka Kassabova
Mud Sweeter Than Honey
Margo Rejmer
The Bone Whisperers
Taina Tervonen, Sarah Robertson
Bulgaria - Culture Smart!
Juliana Tzvetkova
