My Grandma used to make book covers like this out of plastic canvas. I am not a fan of filling in that much plastic canvas so I thought I would do this instead. I needed a cover for my Diary so I decided to crochet one ;D I don't have a pattern because books come in all different sizes but I do have an explanation on how to do it. If you can't see the picture right click on it and select view picture. What do you think?
This one is mine :)
here is one I made for my mother in law (it is all soft and comfy)
I made this one for my husband. A moogle on the front and NIN on the back
Here is how I did it:
Figure A in the picture.
Get a piece of news paper and lay the book out open in the middle.
Trace the book. Cut out piece and then cut an extra centimeter off of the border.(the pink area in picture A)
Crochet a rectangle that size.
Pick a border color and crochet around the whole thing.
Measure and cut 2 pieces of plastic canvas (see purple in picture B)
Sew around the edge of plastic canvas to the inside of the crocheted piece. plastic canvas should be on the inside of the book's front and back cover.
slide piece onto book :)