This is the fourth in the Flying Machine Press series Great War Aircraft in Profile. It covers all of the aircraft produced by the Pfalz Flugzeugewerke and follows the same format as the previous volumes. The copiously illustrated text (I counted 326 photographs) is followed by 46 pages of line drawings of the major types produced. These in turn are followed by more photographs, tables detailing the numbers of aircraft in service at the front, a section describing the colours and markings carried by Pfalz aircraft and then 18 pages of coloured artwork showing those markings. The quality of the paper used is good so that photographic reproduction is generally excellent and, where this is not the case, the fault lies with the original photograph. The artwork also is well reproduced illustrating some very interesting colour schemes for a large number of the types described. I was less happy with the line drawings (repeated in two scales 1/48th and 1/72nd), as, in some cases, fine details - engine cylinder fins, radiator honeycombs, cross hatching - have been lost in reduction and printing. But this is a minor point, overall, this is an excellent book and, although about 40 GBP may seem a lot to pay for a softback, I feel that it really provides good value for money and recommend it to all.