this one about case binding from SeaLemonDIY on YouTube as well as her tutorial on how to make book cloth. She has a few other tutorials that I liked and I made some simple book presses out of wooden cutting boards that I had on hand, plus a smaller one from some scrap wood to press the signatures (the little booklets of paper) while I glued the spine. I watched a few different tutorials on how to stitch signatures together using thread, and then I made this book (it's ~3"x5").
Overall the first one turned out well, except the spine of the paper block (the stack of signatures) is not attached to the spine of the book cover. I fixed that in the second one, which turned out (technically speaking) much better than the first. For the second one, I decided to make my own book cloth, because my head was filled with ideas of the things I could use for the cover. I took a piece of fabric from my stash and followed the SeaLemon DIY tutorial on making book cloth (referenced above). I also got a few hints from LizzieMade's tutorial on making book cloth using the heat bonding method. I got some Pellon Wonder Under and ironed a piece of it to the fabric. Then, because I did not have any Yasutomo Kozo rice paper on hand, I ironed a piece of tracing paper to the Wonder Under. Rest assured, I will acquire some Yasutomo Kozo rice paper at my earliest convenience. The book cloth was a little thick when I was mitering the corners on the inside of the book, likely due to the relative thickness of the tracing paper.
Also, I have a new favorite tree (in addition to aspens). It's an oriental cherry tree (Japan - rose family). The blossoms are lovely and so soft.