Books like Practical Demonkeeping
Christopher Moore
Practical Demonkeeping is 250 pages, about 4 hours 35 minutes at 250 words a minute.
12 books to read next
How long each takes
Mort 5.5 h 
Red, White & Royal Blue 8.1 h 
Soul Music 7.0 h 
Succubus Dreams 5.6 h 
The Last Continent 7.5 h 
Cat's Cradle 4.2 h 
Johannes Cabal the Necromancer 5.3 h 
Three Men in a Boat 3.4 h 
Can You Keep A Secret? 6.7 h 
Motel of the Mysteries 1.8 h 
Wyrd Sisters 5.9 h 
Ella Minnow Pea 3.8 h Bar height shows length. Estimated at 250 words a minute.