I do reviews for a well known online review site and I won't delve into all that can be done with Six by Six, which happens to be a lot. I just want to address the card stock issue which was posted in the previous review. Perhaps this individual is not familiar with this particular card stock but it is not cheap stock as indicated. The cards in this set come with a satin matte finish which is used for high quality business cards. Because of the matte finish, when you first get the cards they will seem difficult to spread but just a couple of uses will makes them easier to use. One of the first items addressed by the creators is that the matte finish will initially feel different and that a couple of seconds moving them around will make it all feel right. I highly recommend this effect just because of the incredible versatility this item offers. Not limited to just five cards like ESP cards, but by having six, one can perform other routines such as Dowsing for Duplicates by Andrew Marsh. This is one item that should carried every day.

The tutorial for this goes over 100 minutes and most of the routines can be used with your ESP cards etc. The cards are well made and the carry case is also handy and has some reveals. Great value at $25

The sets are cool but I expected a better cardstock in terms of handling.
The cards don't slide very well even after applying the tip pointed in the instructional video.
This is a drawback mainly when you try to flase shuffle in a fluent way. You have to akwardly slow down your shuffle very much to be sure you peel ONLY one card after another. They tend to stuck and peel more than one.