Can my pictures be used for ads?

What was the name of the cultish self-help book/group that used to run ads in the back of Popular Science?

• As recently as five or ten years ago a group used to run the same full-page ad in the back of seemingly every Popular Science (it might have been Popular Mechanics) for a book that, because of their ad, looked for all the world like a cult manual or something. The letter talking about it was written by the (long-dead) author of the book's disciple, a woman. (There were pictures of both—the man looked more like a 50s banker than a guru.) Some years ago I looked them up and found them to look more like a self-help group than anything—they had a website with the book in PDF form. Now I've forgotten the name of the group—when I check on newsstands they appear to be gone—and I'd like to know it again. Does anyone remember these ads and the name of the group who bought them? If someone gets to that quickly I'd also love to hear who they were targeting that read Popular Science and whether anyone ever tried to follow their tenets, which were—if I remember right—willpower-based.

• Answer:

  Would you perhaps be referring to "Rosicrucians"? I have no idea why I suddenly remembered that name but now that I think of it, I remember those bizarre ads . . . something to do with a pyramid or a spaceship . . . I never understood that and there was no Internet and I couldn't look them up. I'm sure that's to whom you're referring.