Books like Conversationally Speaking
Alan Garner
Conversationally Speaking is 197 pages, about 3 hours 37 minutes at 250 words a minute.
6 books to read next
How long each takes
The Art of Witty Banter 3.8 h 
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Fine Art of Small Talk, The 4.1 h 
The Art of Talking to Anyone 5.3 h Bar height shows length. Estimated at 250 words a minute.