Books like The Book of Human Insects
Osamu Tezuka
The Book of Human Insects is 364 pages, about 6 hours 40 minutes at 250 words a minute.
12 books to read next
How long each takes
Banana Fish 3.4 h 
20Th Century Boys #1 4.1 h 
桜蘭高校ホスト部 7 3.5 h 
Death Note, Vol. 13 4.0 h 
Nana 3.5 h 
Where the Crawdads Sing 7.6 h 
To Seduce a Bride 7.7 h 
Death Note, Vol. 3 3.7 h 
The Diving Pool 3.2 h 
The Strange Tale of Panorama Island 5.1 h 
Death Note, Vol. 4 3.8 h 
Sex and the Single Girl 4.8 h Bar height shows length. Estimated at 250 words a minute.