Grant Morrison books in order
20 books in the catalogue, about 113 hours of reading in all; the shortest takes 2 hours and the longest 28 hours.
20 standalone books in the catalogue.
Standalone books
Batman & Robin, Vol 2 3.1 h 
Arkham Asylum 4.0 h 
The Invisibles 4.2 h 
Batman Gothic 2.4 h 
JLA 3.5 h 
Flex Mentallo 2.6 h 
Doom Patrol, Book 1 5.7 h 
We3 2.1 h 
All-star Superman 2.9 h 
Batman and Son 3.7 h 
Batman R.I.P 3.1 h 
Final Crisis 8.8 h 
Batman & Robin, the Deluxe Edition 3.2 h 
Batman and Robin Must Die! 2.7 h 
Supergods 8.8 h 
The Return of Bruce Wayne 3.5 h 
Time and the Batman 2.5 h 
Superman - Action Comics 4.7 h 
The Invisibles Omnibus 28.2 h 
The Animal Man Omnibus 13.1 h