Books like A Smart Girls Guide to Boys
Nancy Holyoke
A Smart Girls Guide to Boys is 112 pages, about 2 hours 3 minutes at 250 words a minute.
12 books to read next
How long each takes
Sisters 3.6 h 
Girl Online 6.4 h 
Fifteen 3.6 h 
How to Talk to Girls 51 min 
Who Am I Without Him? 4.1 h 
The A-List 4.5 h 
Up a Road Slowly 3.5 h 
Have You Filled a Bucket Today 35 min 
Paper Princess 6.8 h 
Better Off Friends 5.3 h 
Five Feet Apart 5.3 h 
Always and Forever, Lara Jean 6.1 h Bar height shows length. Estimated at 250 words a minute.