"Invisible" Hardcover Book Wall Mount

We have these great photo albums that have nice large format pictures printed on the front of them. They were just leaning on the shelf, and I was thinking that I wanted to get some photos printed for the wall, so then I realized I should print some brackets to mount them.

It took a bit, getting the angle right and then realizing I needed a cut out for the back cover, since the front cover sits outside of the bracket. I wanted the font cover to sit outside of it, so that the bracket hides in