Here is how I made a paper book nook for my bookshelf. Since I love Alice in Wonderland, this one shows Alice falling through the rabbit hole. It has 6 paper layers and I think it is quite easy to assemble. It might be a little trickier to cut, but I liked the effect.
Printable files are available here:
www.etsy.com/listing/15904901...
I hope you like it!
Thank you!