Books like Memoirs of an Infantry Officer
Siegfried Sassoon
Memoirs of an Infantry Officer is 307 pages, about 5 hours 38 minutes at 250 words a minute.
12 books to read next
How long each takes
Good-Bye to All That 6.4 h 
The Guns of August 10.6 h 
Homage to Catalonia 4.5 h 
Going Solo 3.8 h 
The Storm of Steel 5.9 h 
Happy Odyssey 5.3 h 
Seven Pillars of Wisdom 12.8 h Happy Odyssey 5.3 h 
The Good Soldier Schweik 11.4 h 
The Great Escape 4.8 h 
Lawrence in Arabia 10.6 h 
Testament of Youth 12.1 h Bar height shows length. Estimated at 250 words a minute.