The Invisible Flea. The Spirit Hand. The Spirit in the Bottle. The Floating Body. I couldn't resist ordering Spooky Magic when I was about eight years old and saw it in the Scholastic Book newsletter. When the book arrived I wasn't disappointed. A couple of my friends and I prepared a magic show for our Cub Scout den, and it was a hit. The Floating Body trick, depicted on the cover, was the crowd favorite.
A couple of years ago I ordered a used copy on Amazon. It's out of print, but you can get a copy for as low as $.50. I impressed by the quality of the magic tricks, and the instructions for performing the tricks. The illustrations are also excellent, and I remember them clearly from my childhood.
Here are some other scans from the book: Spirit Hand, Tricks with Black Thread, back cover.
I couldn't find much information about the illustrator, William Meyerriecks. But look at this great cover he did for Robert Silverberg's Revolt on Alpha C.