I am searching for WWII fighter pilot biographies that is written in the pilots native language and not available in english translation. If you know of any, please post them here.
I know of some danish and norwegian books but there should be accounts from other nationalities out there as well. Right? 
Do you want only fighters or also bomber pilos?
I can think of
Adelmo rigoli decollo verso l’ingoto. “Take off toward the unknown”
a wonderful story of an italian fighter pilot first and after 1943 with regia aeronautica and Italian co-belligerant air force. (a great account of an attack to the b17 with a MC200, if you want to feel the same try to shoot down B17 with a g50 at 6000m…)
Flaccomio il falco del deserto. cr42 pilot in africa. (more attack plane than fihgter, but many dogfight inside also…)
Martino Aichner il gruppo Buscaglia this on torpedo bombers but really a must!
I thik Bear has many more ideas on this!
Also we have an unpublished diary of an ANR 109 pilot in nothern italy 1944…
Thanks Jimmi!
It is only fighter pilots I am interested in for the moment.
Books are noted!
Books written by Italian fighter pilots:
Giulio Lazzati – Ali nella tragedia – Mursia 1997
Giulio Lazzati – I soliti quattro gatti – Mursia, 1975
Sergio Flaccomio – I falchi del deserto – Longanesi
Giovanni Massimello – Furio Niclot Doglio, un pilota indimenticabile – Edizioni Aerofan – Giorgio Apostolo Editore, 1998
Adelmo Rigoli – 1943: decollo verso l’ignoto – LINT Editore, 1998
Paolo Voltan – Un pilota del cavallino Rampante – Editrice La Galaverna-Flaviana, 1990 (Esaurito)
Antonio Trizzino – Le giovani aquile – Longanesi
Aldo Gon - Come Rondine nel cielo – Memorie di un pilota triestino del 4° Stormo di Gorizia – Ed. Associazione Culturale 4° Stormo, Gorizia, 2004
Giuseppe Pesce e Giovanni Massimello – Adriano Visconti asso di guerra – ed. Albertelli edizioni speciali, 1997
Giuseppe Pesce – Giuseppe Cenni, pilota in Guerra – Edizioni Aeronautica Militare, 2005
Giacomo Manfredi – Ali d’Italia – Società Editrice Barbarossa, 1999
Nino Arena – Le Aquile della Tre Osei – Storia del Comandante Drago er della sua Squadriglia 1940-45 – Ermanno Albertarelli Editore. 1999
Nino Pittini – Incocca, Tende, Scaglia: un emblema, un modo di vivere – Edizioni I.T.C., 2003
Silvio Scaroni – Battaglie nel Cielo – Pocket Longanesi, 1971
Books written by Italian Bomber and Torpedo pilots:
Martino Aichner – Il gruppo Buscaglia – Mursia, 1991
Ottone Sponza - Nato per Volare – Giorgio Apostolo Editore, 1998
Orazio Giuffrida - Buscaglia e gli aerosiluranti – Ufficio storico dello Stato Maggiore dell’Aeronautica, Roma 1998
Guido Bonvicini – Carlo Faggioni e gli aerosiluranti Italiani – Cavallotti Editore, Milano, 1987
Gen. S.A. Giulio Cesare Graziani – Con bombe e siluri fra le cannonate – Avventure di guerra dal Mar Rosso al Mediterraneo- Ed Aerosiluranti, Roma 1978
Sponza e D’Agostino - Mister Bridge – Gabriele De Marco Editore, Treviso 1985
Francobaldo Chiocci – Gli Affondatori del Cielo – ed. Il Borghese, Roma 1972
Giuseppe Cimicchi – Ali di Guerra sul Mediterraneo – ed. Ciarrapico, Roma 1980
Gianni Bianchi – I Ragazzi del gruppo Buscaglia – Edizione 1998
Francesco Aurelio di Bella – Un aviatore racconta le sue battaglie 1940-43 – A. Renna Editore, 1950
Salvatore Patri – L’ultimo sparviero dell’impero italiano, A.O.I. 1940-41 – IBN Editore
Antonio Mura - In volo tra guerra e pace, quarant’anni nell’Aeronautica Militare Italiana - Giorgio Apostolo Editore, 1995
Paolo Moci – Seguendo la Bandiera – Vita di un pilota - Giorgio Apostolo Editore, 2001
Alberto Briganti – Oltre le nubi il sereno: l’uomo che visse tre volte – Gino Rossato Editore, 2003 (Esaurito)
Antonio Ragonese - Stralci di vita vissuta da un Picchiatello siciliano – Edizioni Pagine, 2003.
Books written by British Fighter Pilots:
Roald Dahl – Flying Solo
P.Clostermann - The Big Circle
Paul Richey - Fighter Pilot: a personal record of the campaign in France 1939-1940 – Ed. Cassel & Co., 2001
Larry Forrester - Fly For Your Life - The story thriller of wartime ace Robert Stanford Tuck – Mayflower, Granada Publishing 1979
Norman Franks - Sky Tiger - The Story of Sailor Malan
Harry Coldbeck - The Maltese Spitfire
Charles Demoulin - Firebirds - Flying the Typhoon in action
C.J. Sheddan - Tempest Pilot
Colin Gray - Spitfire Pilot
Bob Doe - Fighter Pilot
Ginger Lacey - Fighter Pilot
Richard Hillary - The Last Enemy
Duncan Smith - Spitfire into action
Alan Deere - Nine Lives
Bobby Oxspring - Spitfire Command
Roland Beaumont - Tempest Over Europe
Tony Spooner - Night Fighter Ace
Max Avery & Christopher Shores - Spitfire Leader - The Story Of WG CDR Evan ‘Rosie’ Mackie
Books written by American Fighter Pilots:
Gregory “Pappy” Boyington – Baa Baa Black Sheep
C. Yaeger – Living for Flying
Col. Clarence “Bud” Anderson – To Fly and Fight – Memories of a triple ace – Pacifica Military History, 1990
John E. Lewis – The Mammouth Book of Fighter Pilots – Robinson, 2002
Robert S. Johnson e Martin Caidin - Thunderbolt: The P-47
Comm. R. “Mike” Crosley – They gave me a Seafire – ed. Airlife Classica, 2001
Gabreski & Molesworth - Gabreski: A fighter pilots life
Mustang Ace - Robert Goebel: Mustang Ace
William R Dunn - Fighter Pilot: The first American Ace of WWII
Hugh Dundas - Flying Start
Joe Noah & Samuel L. Sox Jr.- George Preddy: Top Mustang Ace
Books written by Axis Pilots:
H.U.Rudel - Stuka Pilot
Saburo Sakai – Samurai
General Adolf Galland - The First and The Last
General Johannes Steinhoff – The Straits of Messina: diary of a fighter commander – Corgi Books Paperpbacks, 1973
Helmut Lipfert & Wener Girbig – The War diary of Hauptmann Helmut Lipfert – JG52 on the Russian front, 1943-45 – Shiffert Publishing, 1993
Jill Amadio - Gunther Rall - A memoir
Ulrich Steinhilper with Peter Osbourne - Spitfire On My Tail
Adolf Dickfeld - Footsteps Of The Hunter
Hajo Hermann - Eagles Wings
Willi Heilmann - I Fought You From The Skies
Heinz Knoke - I Flew For The Fuhrer
Gunther Bloemertz - Heaven Next Stop - A Luftwaffe Fighter Pilot At War
Walter Henkels – Eismeerpatrouille
That’s all, for the time being… 
Thx Bear. Many italian accounts!
Any top three of the fighter pilot books?
Italian top 3 (fighters) to me:
Sergio Flaccomio – I falchi del deserto – Longanesi
About a Squadron of Cr.42 in North Africa
Adelmo Rigoli – 1943: decollo verso l’ignoto – LINT Editore, 1998
Very good book. The whitness of a pilot of 4° Stormo flying Regia Aeronautica and later after the armistice flying Co-Belligerant Air Force
Antonio Trizzino – Le giovani aquile – Longanesi
The life story of Franco Lucchini, wartime top Italian ace WW2.