Marco's Comments:
An entire book devoted to a single effect, with lot of details about its performance. It is a stage trick, suitable for theatres, with pre-show and a deck switch (aren't they all?) but a very strong effect for a serious mentalist.
The trick is explained in minute detail and it's very strong, however it is suitable to a theatre or conference hall with about 80-100 people: it doesn't play that well with smaller groups, although it could be adapted.