Posted this one previously. These are on my shelf and are 38 focused. There are others there, but I've just about nailed down all the unit and squadron histories written that I can find anyway.
P38 Lightning-Reading List
Group or Squadron Histories:
“An Escort of P-38s-The 1st Fighter Group in World War 2” - John D. Mullins
“Attack & Conquer-The 8th Fighter Group in WW2” –John Stanaway & Lawrence Hickey
“The Eight Ballers: Eyes of the Fifth Air Force”-John Stanaway & Bob Rocker
“20th Fighter Group” – Ron MacKay
“The Fighting 33rd Nomads in World War 2 Volumes 1 & 2” -James E. Reed
“Cobra in the Clouds-Combat History of the 39th Fighter Squadron”-John Stanaway
“Protect & Avenge-The 49th Fighter Group in World War 2”-S.W. Furguson & William K. Pascalis
“The 55th Fighter Group vs The Luftwaffe”-John M. Gray
“Adorimini-A History of the 82nd Fighter Group in World War 2” –Steve Blake with John Stanaway
“The 370th Fighter Group in World War 2” -Jay Jones
“The Geyser Gang-The 428th Fighter Squadron in World War 2” –John Truman Steinko
“Possum, Clover & Hades-The 475th Fighter Group in WW2”-John Stanaway
“The 479th Fighter Group in World War 2” - Terry Fairfield
"The Only Way Home" -Robert Murray (54th FS in the Aleutians)
"474th Fighter Group in World War II"-Isham Keller
"Straight and Level-The Story of the 33rd Photo Recon Squadron"-J.B. Woodson
"Vampire Squadron-The Saga of the 44th Fighter Squadron in the South an Southwest Pacific."-William Starke
Books on the P38 Lightning and it’s pilots
“The Lockheed P-38” – Warren Bodie
“Peter Three Eight-The Pilot’s Story” -John Stanaway
“P38 Lightning Aces of the Pacific and CBI” - John Stanaway
“P38 Lightning Aces of the ETO/MTO” - John Stanaway
“Lockheed P38 Lightning” -Steve Pace
“Lockheed P-28 Lightning” -Frederick A. Johnsen
“P-38 Lightning in World War II Color” - Jeffrey L. Ethell
“P-38 Lightning-Restoring a Classic American Warbird” –Jesse Alexander
"P38 Lightning in Detail and Scale" Part 1 & 2 Bert Kinzey