Ah-Ha is a great book. It is actually a culmination of original material between David Harkey and Eric Anderson giving it the title AH-HA (Anderson-Harkey Harkey-Anderson). There are many things in the book for both close up and stand up performing. A few mentalism routines including “Scatterbrain”, a great routine using only a pen and a newspaper. It also includes the impromptu pencil through dollar bill called “East, Meets South, Meets West”. It, in my opinion, is the best bill penetration out there.