"Mentalists and magicians have used variations of the Sub Rosa technique for generations, but it is vastly underutilized these days in favor of gaffs and flashy cover movement. The subtlety of the method is what sets it apart. Frailich does an exceptional job of explaining the nuances of the technique and offering dozens of routines and concepts incorporating it. The effects include number forces, ESP routines, coin magic, and silk magic. The magic effects alone are worth having Sub Rosa in your library. " -Rolando Santos, Linking Ring Magazine