Definately recommend the Aerofax book, 175 pages with loads of photos and colour artwork. However I can not offer an opion on the text because I have never got around to reading it, but it is great for model making reference. Also I believe Midland Counties have them in their discount section so worth taking a look. I also have the Squadron Signal book ‘Sukhoi Figters in Action’ which is a soft back with 50 pages, obviously contains much less detail but might be worth a look if you can find a copy.