This was made so I could throw my paperback copy of the pocket refrence guide into my bag without worry, would suggest makeing some sort of duct tape strap for the front but otherwise thisa prevents damage of the book durring extended carrying. hole in back is to push it out in case yours is a bit tight. can be adapted to any book if you use the scale tool in prusa slicer if you need/want to. you can add straps/cable ties useing the side stap holders on the strap down model I printed mine before this revision was made for public release. Edit file is solidworks 2023 if you happen to have that.
This is my exact book I modeled around https://www.amazon.com/Pocket-Ref-4th-Thomas-Glover/dp/1885071620
The author marked this model as their own original creation.