If you are interested in Victory medals, then James Michel's 2014 book, World War I - Victory Medals, needs to be on your shelf. I just received my copy last week (thanks to my father-in-law for the gift!), and plan to post more fulsome notes on this, but wanted to post something right away.
The illustrations alone are worth the cover price: photo after photo, well done, in color.
Another thing that stands out right away is that Jim has studied the literature and the medals very, very carefully, and states plainly what many sellers would rather not hear, that there are many examples of reproduction/fake medals and reproduction/fake clasps out there. If your goal is to collect and display examples of WWI Victory medals that may or may not be genuine, you'll want to flip past his extensive notes on the various real and fake types, and just enjoy the photos and the history...
More soon on this impressive new book, to shelve alongside The Gleim Medal Letters and Interallied Victory Medals.
This book is available on Amazon.com, here.
See also, in the second image, a set of images of the Submarine Chaser clasps that Jim submitted for the site, showing the official issue versions and the reproductions.