Books like Uncle John's Bathroom Reader
Or.) Bathroom Readers' Institute (Ashland
Uncle John's Bathroom Reader is 224 pages, about 4 hours 6 minutes at 250 words a minute.
7 books to read next
How long each takes
A Supposedly Fun Thing I'll Never Do Again 6.5 h 
The Yuppie Handbook 2.3 h 
Is Everyone Hanging Out Without Me? 4.1 h 
Brain Droppings 4.7 h 
If Life Is a Bowl of Cherries, What Am I Doing in the Pits? 4.0 h 
The Areas of My Expertise 4.4 h 
Fart Proudly 2.4 h Bar height shows length. Estimated at 250 words a minute.