two excellent books with colour profiles are both Osprey Publications in the Aviation Elite series. One is about Nowotny and the other Jet Aces of the Luftwaffe.
Yup. I am definitely losing it
The 2 books above refer to the 262 which proves that I am always behind myself
Having said that get on to Osprey's web site. There are many books on the Fw 190 even one dealing only with the Schlachtgruppen 190's. Others I can think of off-hand are Fw 190 Aces of the Western Front and Fw 190 Aces in Russia.