Lovely Frankenstein's 31 Days of Halloween: Halloween Books
If you like to DIY your own Halloween decor, then this is one from Lindsey at Better After that would be a good one for you. You can make some spooky looking old spell books (Think Hogwarts, or Hocus Pocus!) with some really inexpensive supplies.
The top left was made with some of those gummy plastic party favors from the dollar store. Effectively creepy! CLICK HERE for the tutorial.