Astrid Lindgren books in order
25 books in the catalogue, about 81 hours of reading in all; the shortest takes 30 minutes and the longest 7 hours.
3 series and 18 standalone books in the catalogue.
Pippi Longstocking
3 books
The Tomten
2 books Tomte är vaken length not known
The tomten and the fox 35 min Karlsson-on-the-Roof
3 books 1 
Karlsson-on-the-Roof 2.6 h 2 
Karlsson Flies Again 2.5 h
Karlsson-on-the-Roof 2.6 h 2 Karlsson Flies Again 2.5 h 3 Karlsson is Sneaking Around Again length not known
Standalone books
Pippi Longstocking 2.9 h 
The Children of Noisy Village 2.3 h 
Mio, My Son 3.3 h 
Rasmus and the Vagabond 3.5 h 
Tomten Är Vaken 35 min Bullerbyboken 5.3 h 
Madicken 2.9 h 
Christmas in Noisy Village 33 min 
Emil in the Soup Tureen 2.1 h 
Happy Times in Noisy Village 2.4 h 
Emil's Pranks 2.4 h 
Seacrow Island 5.3 h 
The Brothers Lionheart 4.2 h 
Ronia, the Robber's Daughter 4.0 h 
One-Hundred-and-One Read-Aloud Classics 7.4 h 
The Book of Children's Classics 6.9 h 
Pippi Goes to School 30 min 
Great Girl Stories 2.9 h Collected editions
Volumes that gather several of the books above.
