Books in World War I (sorted alphabetically by author)
- Worrying Won't Win Montague Glass
- The Doings of the Fifteenth Infantry Brigade: August 1914 to March 1915 Lord Edward Gleichen
- The Boy Scouts on Belgian Battlefields John Henry Goldfrap
- The Retreat from Mons George Stuart Gordon
- The Luck of Thirteen: Wanderings and Flight through Montenegro and Serbia Jan Gordon and Cora Gordon
- Foods that will win the war and how to cook them (1918) C. Houston Goudiss and Alberta M. Goudiss
- Mr. Punch's History of the Great War Charles L. Graves
- Fairies and Fusiliers Robert Graves
- The Fifth Battalion Highland Light Infantry in the War 1914-1918 5th Great Britain. Army. Highland Light Infantry. Battalion
- The Log of a Noncombatant Horace Green
- The Soul of Democracy Edward Howard Griggs
- Over Here Edgar A. Guest
- Before the War Viscount R. B. Haldane Haldane
- Kitchener's Mob: Adventures of an American in the British Army James Norman Hall
- High Adventure: A Narrative of Air Fighting in France James Norman Hall
- Some Naval Yarns Mordaunt Hall
- Gallipoli Diary, Volume 2 Ian Hamilton
- Gallipoli Diary, Volume 1 Ian Hamilton
- Uncle Sam's Boys with Pershing's Troops H. Irving Hancock
- Handy War Guide for My Company: Handy Company Commander's Guide André Godefroy Lionel Hanguillart
- At Suvla Bay John Hargrave
- A Soldier's Sketches Under Fire Harold Harvey
- The Boy Allies Under the Sea; Or, The Vanishing Submarines Clair W. Hayes
- The Boy Allies with the Victorious Fleets; Or, The Fall of the German Navy Clair W. Hayes
- The Boy Allies at Verdun; Or, Saving France from the Enemy Clair W. Hayes