Not my best buy. I bought this when I was trying to master the Elias multiple shift. I can do the Elias multiple shift, but with little help from here. The videos are rushed, unclear and unhelpfully explained, adding little to the terse text.
This is an extremely useful booklet. Every time I go back to it I marvel once again at the magic you can bring about with the deck that usually sits idle in the card drawer. It is clear, well-written, insightful and engaging. A very good buy.