Roger Zelazny books in order
44 books in the catalogue, about 250 hours of reading in all; the shortest takes 3 hours and the longest 23 hours.
3 series and 30 standalone books in the catalogue.
The Chronicles of Amber
11 books 1 
Nine Princes in Amber 3.5 h 2 
The Guns of Avalon 4.0 h 3 
Sign of the Unicorn 3.5 h 4 
The Hand of Oberon 3.5 h 5 
The Courts of Chaos 3.4 h 6 
Trumps of Doom 3.7 h 7 
Blood of Amber 4.0 h 8 
Sign of Chaos 4.0 h 9 
Knight of Shadows 4.6 h 10 
Prince of Chaos 4.4 h
Nine Princes in Amber 3.5 h 2 The Guns of Avalon 4.0 h 3 Sign of the Unicorn 3.5 h 4 The Hand of Oberon 3.5 h 5 The Courts of Chaos 3.4 h 6 Trumps of Doom 3.7 h 7 Blood of Amber 4.0 h 8 Sign of Chaos 4.0 h 9 Knight of Shadows 4.6 h 10 Prince of Chaos 4.4 h Blue Horse, Dancing Mountains length not known
Francis Sandow
2 books
Changeling
2 books
Standalone books
The Hugo Winners, Volume Four 7.5 h 
The Dream Master 2.9 h 
This Immortal 3.4 h 
Four for Tomorrow 3.9 h 
Lord of Light 5.1 h 
Unicorn Variations 4.4 h 
Creatures of Light and Darkness 3.5 h 
Damnation Alley 2.9 h 
Jack of Shadows 3.8 h 
The Chronicles of Amber (2 editions) 6.2 h 
Deus Irae 3.5 h 
Doorways in the Sand 3.6 h 
My Name Is Legion 3.9 h 
100 Great Science Fiction Short Short Stories 5.0 h 
Roadmarks 3.4 h 
The Last Defender of Camelot 5.7 h 
Dilvish, the Damned 6.7 h 
Eye of Cat 3.8 h 
Science Fiction A to Z 11.9 h 
Bakers Dozen 11.2 h 
Supermen 6.4 h 
The Fantasy Hall of Fame [30 stories] 10.3 h 
Bring Me the Head of Prince Charming 5.5 h 
The New Hugo Winners, Volume II 6.8 h 
Isaac Asimov Presents The Great SF Stories 25 6.7 h 
A Night in the Lonesome October 5.3 h 
Psycho Shop 4.0 h 
Lord Demon 6.0 h 
The Great Book of Amber 23.1 h 
The Vampire Archives 18.9 h