AlbatrossThese public domain books were gathered together (by RAF_Louvert, I believe…) for ease of downloading and are for the enjoyment of all. I originally got them from the Combat Ace site.

WWI Aviation Books, Set 1

Biographies, Diaries, and Personal Writings:
14,000 Miles Through the Air, by Captain Ross Smith, c.1922
Air Men O’War, by Boyd Cable, c.1918
Fighting the Flying Circus, by Eddie Rickenbacker, c.1919
Guynemer, The Ace of Aces, by Jacques Mortane, c.1918
Luck on the Wing, by Major Elmer Haslett, c.1920
The Flying Poilu, by Marcel Nadaud, c.1918
Aircraft Mechanics Handbook, c.1918
How To Fly, by A. Frederick Collins, c.1918
Orders, Decorations, and Insignia, by Colonel Robert E. Wyllie, c.1921
The American Air Service, by Arthur Sweetser, c.1919

WWI Aviation Books, Set 2

Biographies, Diaries, and Personal Writings:
A Flying Fighter, by E.M. Roberts, c.1918
An Aviatorrquote s Field Book, the field notes of Oswald Bolcke, English Edition c.1917
Flying For France, by James R. McConnell, c.1917
Heroes Of Aviation, by Laurence La Tourette Driggs, c.1918
Night Bombing With the Bedouins, by Robert H. Reece, c.1919
The Red Battle Flyer, by Manfred von Richthofen, English Edition c.1918 Reference:0
Aircraft Of Today, by Charles C. Turner, c.1917
Information for Air Service Mechanics, by The U.S. Air Service, c.1919
Practical Flying, by W.G. McMinnies, c.1918
The Romance Of Aircraft, by Laurence Smith, c.1919lang1033

WWI Aviation Books, Set 3

Biographies, Diaries, and Personal Writings:
A Happy Warrior, the letters of William M. Russel, c.1918 An Explorer in the Air Service, by Hiram Bingham, c.1920
George Guynemer, Knight of the Air, by Henry Bordeaux, c.1918
High Adventure, by James Norman Hall, c.1918
Plane Tales From the Skies, by Wing Adjutant, c.1918
The Way of the Eagle, by Charles J. Biddle, c.1919

Reference:
The Australian Flying Corps 1914-1918, by Frederic Morley Cutlack, c.1933
Knights of the Air, by Lieutenant Bennett A. Molter, c.1918
Textbook of Applied Aeronautic Engineering, by Henry Woodhouse, c.1920
The Struggle in the Air 1914-1918, by Major Charles C. Turner, c.1919

WWI Aviation Books, Set 4

Biographies, Diaries, and Personal Writings:
Above the Battle, by Vivian Drake, c.1918
Cavalry of the Clouds, by Alan Bott, c.1918
Go Get ‘Em!, by William Wellman, c.1918
In The Clouds Above Baghdad, by Lt. Colonel J.E. Tennant, c.1920
Sky Fighters of France, by Lieutenant Henry Farre, c.1919
Winged Warfare, by William A. Bishop, c.1918

Reference:
Aviation In Canada 1917-1918, by Lieutenant Alan Sullivan, c.1919
Learning To Fly in the U.S. Army, by E.N. Fales, c.1917
The A-B-C of Aviation, by Captain Victor W. Page, c.1918
The War in the Air: Volume I, by Walter Raleigh, c.1922

WWI Aviation Books, Set 5

Biographies, Diaries, and Personal Writings:
Above The Battles, by C.H.A. Andre, c.1919
En l’air!, by Bert Hall, c.1918
Green Balls: The Adventures Of a Night-Bomber, by Paul Bewsher, c.1919
Letters of an American Airman, by Captain Hamilton Coolidge, C.1919
The Fledgling, by Charles Bernhard Nordhoff, c.1919
With the Flying Squadron, by Flight Lieutenant Harold Rosher, c.1916

Reference:
Military Aeroplanes by Grover C. Loening, c.1917
The Aero Manual, c.1909
The German Air Force in the Great War, by Georg Paul Neumann, c.1920
Wings of War, by Theodore Macfarlane Knappen, c.1920