The Golden Age DC Comics 1935 to 1956  by Paul Levitz published in 2017.  The book is approximately 13 x 10 inches.  Paul Levitz is an interesting author and well worth the time to look up and red his biography.  He was well know to the comic world and DC comics.
This book is Brand new and in its original packaging.  Refer to pictures 3 and 4 and you can see the original plastic cover.  This book would be a great addition to your collection or just open and read.  Buyer pays postage of $12.00. I apologize that the pictures show the shadows of the plastic covering. PS - Postage Media Mail - 6.00 - 5 to 6 days