Books like The Very Lonely Firefly
Eric Carle
The Very Lonely Firefly is 32 pages, about 35 minutes at 250 words a minute.
12 books to read next
How long each takes
The Snowman 35 min 
The Foot Book 35 min 
Where's Spot? 22 min 
Chicka Chicka a B C 15 min 
Stellaluna 53 min 
Tiddler 35 min 
The Tale of Peter Rabbit 35 min 
Peter Pan 3.4 h 
The Wind in the Willows 3.5 h 
Through the Looking-Glass 2.5 h 
Twenty Thousand Leagues Under the Sea 6.0 h 
Lola the Elf 18 min Bar height shows length. Estimated at 250 words a minute.