A good introduction to magic, no matter how you spell it. I’m not a Kemetic polytheist and know very little about heka, so I found the part about execrations particularly interesting. If anyone out there is contemplating starting a praxis, you could do worse than begin here.
I don’t however think the series is complete yet so I’d also recommend a beginner snag one of my favorite books, The Sorcerer’s Secrets by Jason Miller, in addition. It’s even available for the Kindle.