Graham, I would obviously recommend the ones I wrote myself
This is the latest:
http://www.squadron.com/ItemDetails.asp?item=KG3024
As with all previous volumes, it's a Polish-English edition, full of rare photos (most of them from the San Diego Aerospace Museum archives, I daresay never published before), superb colour profiles (if anyone wishes to have a look at some samples, please PM me), and - last but not the least - the book offers Thunderbolt's quite detailed operational record ETO June-December 1944. It's packed with quotes from various P-47 pilots' memoirs and lots of action, which hopefully make a smooth and enjoyable reading
And don't be scared off by my English, the book was thoroughly proof-read by an English speaker
