"Dark Arts Defense Basics for Beginners"
Thanks to Luke for the dimensions/description of the original prop, and Brucelee42 for his super clean file of the front and back cover (really excellent work), I was able to put this book together this Sunday!
I found a blank sketchbook close to 8x10 (the one I bought is a little bigger, but proportionally the same) and the amazing thing is that it had a white cloth wrapped around the entire cover, so all I did was cut a part of it off and paint the spine the dark red color (paint was heavily thinned with water, the cloth soaked it easily.) On the original it looks like the artwork doesn't wrap around to the inside of the cover, but instead stops just short of the edge, as you can see the cardboard on the edges of the cover. That made it super easy to just glue the cover right over the top of the covers
After that was done I just added a little bit of wear with the same techniques I used on my potion book.
Thanks again to Luke and Bruce for making this book an easy build.