Books like The Encyclopedia of Mass Murder
Brian Lane
The Encyclopedia of Mass Murder is 366 pages, about 6 hours 43 minutes at 250 words a minute.
12 books to read next
How long each takes
By Their Father's Hand 5.2 h 
Murder of Innocence 6.2 h 
Final Truth 4.2 h 
Chaos 9.7 h 
Killers of the Flower Moon 6.4 h 
The Ultimate Evil 9.4 h 
The Private Diary of Lyle Menendez 4.8 h 
Columbine 7.8 h 
The Evidence of Things Not Seen 2.3 h 
Buried Dreams 6.5 h 
Deadly Kin 4.0 h 
Invisible Darkness 10.4 h Bar height shows length. Estimated at 250 words a minute.