This is the 49th book in Kagero's simply titled "Monographs" series. It is a European A4 sized (8-1/4" x 11-3/4"), 96 page, square bound, card cover. There is also an unbound foldout with 1/48th scale plans and plan views in 1/72nd scale. If buying second hand make sure this is included if important to you.
Readers of this series will remember that number 41 in this series also covered the He 219. The present volume is basically a corrected edition of that book but in this case spread over two volumes. The present book is about the same page count as the previous book. The differences are essentially:
1.) Some mistakes and shortcomings of the first book have been corrected. I haven't made a word by word comparison but this seems to be restricted to the identities of the various prototypes. I mentioned the foldout that wasn't included previously. The first book also had some masking foil which isn't included here.
2.) The last half of the text of the first book has been replaced with computer aided design (CAD) drawings of the He 219 cockpit. These are of high quality. Kagero is going "all in" on CAD across its various series.
Although the desire to correct mistakes and shortcomings is commendable I think Kagero is taking the opportunity to double dip; to get consumers to buy the same stuff twice. Why not just publish a volume 2 with an errata page, a foldout, and all the CAD drawings? This is the reason I give the book three stars.
The material as it stands is well worth purchasing if one does not have the previous He 219 book. The prospective buyer will have to decide for himself whether the addition of CAD and various corrections are worth buying the same material again.