Books like Duckling Gets a Cookie?
Mo Willems
Duckling Gets a Cookie? is 44 pages, about 48 minutes at 250 words a minute.
9 books to read next
How long each takes
Duck! Rabbit! 41 min 
The Cookie Fiasco 56 min 
Goodnight Already! 35 min 
Mmm, Cookies! 31 min 
Duck at the Door 35 min 
Duck in the Truck 35 min 
Funny Frank 2.0 h 
Fix-It Duck 26 min 
The Wolf, the Duck, and the Mouse 44 min Bar height shows length. Estimated at 250 words a minute.