Frances Larson 
Severed 
A History of Heads and Heads Found (An Extracurricular Book Chosen by 99% of History Fans Who Love Xiaosongpedia)

This book is about the history of beheading. The content includes: "Shrinking Human Heads", "Trophy of Human Heads on the Battlefield", "Guillotine Culture in Europe", "Artistic Recreation of Human Heads", History of Human Head Worship", "Human Skulls Used for Scientific Research", etc.