Books like Barefoot Gen, Vol. 1
Keiji Nakazawa
Barefoot Gen, Vol. 1 is 288 pages, about 5 hours 17 minutes at 250 words a minute.
7 books to read next
How long each takes
Angela's Ashes 7.9 h 
Jude the Obscure 8.3 h 
Facing the Lion 3.5 h 
The Character of Rain 2.6 h 
Coming of Age in Samoa 5.5 h 
The Lore and Language of Schoolchildren 7.7 h 
Secrets of a Charmed Life 8.8 h Bar height shows length. Estimated at 250 words a minute.