I have about a dozen monographs on the PZL's gull-wing fighters with the most recent being the very informative tome by Mushroom Model Publications.
Do I really need this one? Well, it has scale plans in many scales so let me try.
It certainly has scale plans to the usual 1/72nd and 1/48th scales. Also included are the lesser seen 1/32nd and 1/24th scales! To make this a complete reference book, there are sections on history, use, references museum photos, TM illustrations, as well as building all the recent PZL P.11c kits released from Arma hobby, IBG, & Mirage!
So, it begs asking, who is releasing a 1/24th scale kit? Highly recommended!