Kate DiCamillo books in order
21 books in the catalogue, about 53 hours of reading in all; the shortest takes 35 minutes and the longest 5 hours.
2 series and 15 standalone books in the catalogue.
Mercy Watson
7 books
Mercy Watson to the Rescue 1.5 h 
Mercy Watson Goes for a Ride 1.5 h 
Mercy Watson Fights Crime 1.4 h Mercy Watson: Princess in Disguise length not known
Mercy Watson Thinks Like a Pig 1.5 h 
Mercy Watson: Something Wonky This Way Comes 1.8 h A Very Mercy Christmas length not known
Bink & Gollie
3 books
Bink & Gollie 1.6 h Bink & Gollie: Two for One length not known
Bink & Gollie: Best Friends Forever length not known
Standalone books
Because of Winn-Dixie 3.3 h 
The Miraculous Journey of Edward Tulane 3.7 h 
The Magician's Elephant 3.7 h 
The Tiger Rising 2.4 h 
The Tale of Despereaux 4.9 h 
Great Joy 35 min 
Mercy Watson 1.5 h 
The Chronicles of Harris Burdick 4.3 h 
Flora & Ulysses 4.4 h 
Francine Poulet Meets the Ghost Raccoon 2.1 h 
Raymie Nightingale 4.8 h 
Where Are You Going, Baby Lincoln? 2.1 h 
Eugenia Lincoln and the Unexpected Package 1.8 h 
Louisiana's Way Home 4.2 h 
A Piglet Named Mercy 35 min