Books like Where Did I Come From?
Peter Mayle
Where Did I Come From? is 48 pages, about 53 minutes at 250 words a minute.
12 books to read next
How long each takes
It's So Amazing! 1.6 h 
What's the Big Secret? 34 min 
The Teenage Body Book 5.1 h 
Amazing You! 35 min 
Sex Is a Funny Word 2.9 h 
How Do Apples Grow 35 min 
Tell Me Why 8.8 h 
Mommy Laid an Egg 35 min 
Monster Trucks 35 min 
From Seed to Plant 34 min 
The Usborne Piano Course 35 min 
Ooh! Matisse 53 min Bar height shows length. Estimated at 250 words a minute.