Books like The Importance of Being Seven
Alexander McCall Smith
The Importance of Being Seven is 311 pages, about 5 hours 42 minutes at 250 words a minute.
12 books to read next
How long each takes
Porno 9.0 h 
The Winter of Our Discontent 5.6 h 
No Longer Human 3.4 h 
Diary of a Provincial Lady 2.4 h 
Mr. Fox 6.2 h 
The Last Chronicle of Barset 14.2 h 
Shopgirl 2.4 h 
Moonglow 8.8 h 
The Viscount Who Loved Me 7.3 h 
Persuasion 4.9 h 
An Offer from a Gentleman 7.6 h 
Celestial Bodies 4.7 h Bar height shows length. Estimated at 250 words a minute.