Joan Johnston books in order
11 books in the catalogue, about 66 hours of reading in all; the shortest takes 4 hours and the longest 8 hours.
11 standalone books in the catalogue.
Standalone books
Colter's Wife 6.8 h 
Frontier Woman 8.3 h 
The Rancher and the Runaway Bride 3.8 h 
The Headstrong Bride 3.5 h 
Abduction & Seduction 7.0 h 
After the Kiss 7.2 h 
Marriage By The Book 4.0 h 
Hawk's Way 6.5 h 
The Bridegroom 6.9 h 
The Bluest Eyes in Texas and Wife in Name Only 5.6 h 
Under the Mistletoe 6.5 h